Excitation Time Research Articles

Studies on the benthic genus Sinophysis (Dinophysales, Dinophyceae) II. S. canaliculata from Rapa Island (French Polynesia)

:The poorly known dinoflagellate Sinophysis canaliculata, which was originally described from the Indian Ocean, was abundant in a collection from 2015 from Rapa Iti, a small, remote island of French Polynesia. Since the taxonomic description of this species was incomplete, a detailed morphological study was carried out. The theca was studied with epifluorescence microscopy using Solophenyl Flavine 7GFE500, a fluorescent dye specific to cellulose. This fluorophore was used successfully for the first time with a thecate dinoflagellate. It has the advantage of using blue excitation light and avoids the fading of fluorescence encountered with other dyes with long excitation time. Using this technique and high-resolution field emission scanning electron microscopy, the thecal plate pattern was clarified, and the epitheca had six major plates, 4E and 2A. A conspicuous apical pore was present on the left side of the epitheca. A smaller pore was located on the ventral left side of the apical pore. The apical plates A1 and A2 formed prominent projections which encircled and partly covered the pores. This thecal pattern agreed with the recent emended description of the genus. Two additional platelets, visible only from inside the cell, were possibly present in contact with the pores. In addition, the ‘canal’ cut on the left hypothecal plate H2 had a slit at its base. Seen from the inside, the slit was actually a sieve-like area comprising several small pores with a diameter of 80–100 nm. We hypothesise that this novel structure functions in the extrusion of mucus threads.

Liberation Theology in Brazil: Some History, Names and Themes

Liberation Theology in Brazil: Some History, Names and Themes Cláudio Carvalhaes and Fábio Py Liberation Theology is not just one theology among many others. No! Liberation Theology, as we understand it, is a matter of survival, of life and death. It is a place where faith, discourse of God, and real life meet in order to protect and expand the possibilities of life, in the eco‐biodiversity of the planet and in the possibility of justice for the poor. We didn't choose Liberation Theology; we were chosen by it, and it is because of Liberation Theology that we are here today. To take away Liberation Theology is to mute our voices; we become tongue‐tied, inarticulate, dumb. We are among the third generation of liberation theologians in Latin America. We attended Protestant churches, had a more conservative upbringing, and through social resistance and seminary formation, we were introduced to Liberation Theology. Our beginning text was Gustavo Gutierrez, a Catholic theologian, and we struggled to understand the book. But it led to a time of discovery and excitement! Rubem Alves, Richard Shaul, Julio de Santana, Jaci Maraschin, Leonardo Boff, Milton Schwantes, among many others, influenced us during the height of Liberation Theology. Priests and pastors were giving rise to the movement through churches and Base Communities, gaining consciousness about their social situation and how God Was calling them to a new day! Many women engaged in theological work as well and were beginning to shift the map of the theological production. Great theological material was produced, Liberation Theology pulsed everywhere, and socio‐political transformations spread all across Latin America. It is not our task here to give a long historical account of the processes and movements of Liberation Theology in Latin America, but rather to highlight the work of a few Latin American liberation theologians, namely Rubem Alves, Ivone Gebara, Milton Schwantes and Nancy Cardoso. Liberation Theology concerned itself with the poor and in that way engaged the black people of Latin America. But we failed to include black theologians and Liberation Theology as a whole neglected race in their work. We will begin by highlighting the ways in which liberation theologies started in Latin America with a few notes about its major tenets. Then, we will present a small part of the work of these four theologians mentioned above. We will finish with some words about what is left undone. Liberation Theology was not the creation of one theologian. Gustavo Gutierrez did not begin the movement; it was the work of the people, through grassroots movements calling for justice, in collaboration with priests and theologians, that deeply shaped Liberation Theology in Latin America. Moreover, Liberation Theology is best understood not only by looking at published books, but also by looking at the movement of the church. In the 1950s and 1960s, Latin America experienced extensive influence and control by the United States. In the midst of McCarthyism, the United States was afraid that Russia would take over other countries besides Cuba. The CIA supported radical conservative groups seized power in many countries in Central and South America: Chile, Argentina, Brazil, El Salvador, Nicaragua, and so on. The School of the Americas was an ongoing colonizing institution that supported the CIA's desire to take over the Latin American continent. SOA trained local people to kill their own people and promised money and protection for those who cooperated. The massacre in El Salvador, the killing of Oscar Romero and the priests of Universidad Catolica, the military coup in Brazil and Argentina can be explained by the deadly power and influence of the United States in Latin American countries. Liberation Theology came out of the struggle against external domination and socioeconomic oppression. To see the beginning of Liberation Theology in Latin America, we must go to the conferences of CELAM, the Latin America Episcopate Conference of Medellín in Colômbia, where in 1968 the cries of the people in Latin America began to be heard. This was the birth of a movement that, pushed by the Second Vatican Council, connected with the people through base communities. The church expanded into a new movement, with the help of the...

Effect of substitution on the optoelectronic properties of dyes for DSSC. A DFT approach

The present work aims at a better and deeper insight into the forces that govern the intramolecular charge transfer (ICT) and photo injection processes in dyes for dye sensitized solar cells (DSSC). The geometry, electronic structure, electron density distribution, and absorption spectra, for a selected donor-[Formula: see text]-acceptor (D-[Formula: see text]-A) dye for DSSC were computed and analyzed at a high level of DFT theory. The coplanar geometry of the studied dye (D1) indicates a strong conjugation which facilitates ICT. NBO analyses reveal that this ICT amounts to 0.8e, which is localized on the acceptor and anchoring groups resulting in a marked total delocalization interaction energy. The origin of this stabilization is two-fold; first the [Formula: see text]-charge transfer (CT) interaction from donor to acceptor orbitals and the hyperconjugative interactions involving Rydberg states. The effect of fluorine substituents, in the [Formula: see text]-spacer, on the quantum efficiency of DSSCs was investigated. Gibb’s free energy values, redox potentials, excited state life time, non-linear optical properties (NLO) and driving forces for D1 and its fluorinated derivatives were computed.

A CuBr laser with high efficiency in the double-pumping-pulse mode

The results of examination of characteristics of a CuBr laser operated in the double-pumping-pulse mode with a lasing pulse repetition rate of 50 Hz are presented. The potential to enhance the laser efficiency by choosing the optimum voltages of dissociation and excitation pulses and time delay values is discussed. It is confirmed that a more than twofold increase in the laser efficiency may be achieved through optimization and matched injection of the excitation-pulse energy into the active medium plasma. A laser efficiency as high as 2.6% (with respect to an excitation pulse) with an average power of 16 mW, an energy of 0.32 mJ, a halfamplitude laser pulse duration of 40 ns, and a time delay of 150 μs is demonstrated. The maximum average radiation power is 37 mW with an energy of 0.7 mJ and a laser efficiency of 0.7% at an energy density of 24 (2.7) mJ/cm3 of a dissociation (excitation) pumping pulse.

Elsewhere

Ava DuVernay's Queen Sugar arrives at a defining moment in American cultural life, as politics and art converge in an unprecedented moment for black creativity. The unapologetic emergence of full-fledged black subjectivity onscreen runs parallel to a new chapter in the civil rights movement. Black Lives Matter has propelled long-overdue conversations about policing, the prison-industrial complex, inequality, and structural barriers into the mainstream. The ongoing renaissance in television enabled by streaming platforms and new revenue models has opened doors for artists to explore these issues with revived creative freedom. The feisty sitcoms and criminal dramas that have contained black lives for far too long have been surpassed in quality by works more ambitious, aesthetically daring, and politically relevant. Whether it is FX's Atlanta created by and starring Donald Glover, Marvel's Luke Cage on Netflix, or the intergenerational family politics of Queen Sugar, there isn't a more exciting time to watch black lives matter and shimmer on American screens.

Cardiomyocyte Proliferation: Teaching an Old Dogma New Tricks.

The inability of the adult heart to repair or regenerate is manifested in prevalent morbidity and mortality related to myocardial infarction and heart failure. Cardiomyocyte proliferation, especially after myocardial infarction or in the context of heart failure, has been an area of intense research by many investigators for decades. As a researcher working in this area for the past 25 years, this has been an exciting time, requiring an open mind in leaving old accepted ideas behind and moving forward towards exploiting this new knowledge of cardiomyocyte plasticity.

State observation–based control algorithm for dynamic vibration absorbing systems featuring magnetorheological elastomers: Principle and analysis

Based on state observation, a rapid, stable, and effective control algorithm for magnetorheological elastomer (MRE)–based dynamic vibration absorbers (DVAs) applied to automobile powertrain mount systems is proposed and investigated in this article. The state-space model for powertrain mount systems with MRE-based DVAs is established using the rank criterion method for observable systems. According to the principle of system reconfiguration, a full state observation model using an adaptive Kalman filter with Sage–Husa noise estimator is developed. With the state vectors estimated by the Kalman filter, the phase difference between the displacement of the dynamic mass of the MRE-based DVA relative to the powertrain and the absolute displacement of the powertrain is updated continuously based on Simpson’s rule. By adjusting the applied current to the MRE-based DVA with fuzzy logic control corresponding to the cosine value of the phase difference, the natural frequency of the MRE-based DVA could track the excitation frequency of the powertrain well, which results in vibration attenuation of the powertrain mount system. With consideration of excitation noise, time delays, and parametric uncertainties, the simulation experiments of vibration attenuation performance of the MRE-based DVA for the powertrain mount systems when under time-varying excitation are carried out to verify the effectiveness and the stability of the proposed algorithm with fuzzy steps. The simulation results show that when using the proposed algorithm with fuzzy steps, the MRE-based DVA could attenuate the powertrain vibration rapidly and effectively, and the vibration attenuation performance will not be influenced by noise, time delays, and parametric uncertainties.

One-Pot Synthesis of Carbon Dots-Based Förster Resonance Energy Transfer Material and its Application in Fe<sup>3+</sup> Detection

In this work, an efficient Förster resonance energy transfer (FRET) system has been prepared using carbon dots (CDs). A one-step method has been developed using β-cyclodextrin and tryptophan to synthesize the novel CT-CDs with FRET properties. The FRET was found to occur within the CT-CDs from the tryptophan moiety to the CDs. The FRET efficiency of the system increased with excitation time, reaching a maximum efficiency after 120 min. The CT-CDs were then evaluated in Fe3+ detection application, and showed selective and sensitive detection of Fe3+ over 14 other metal ions.

Unified Time and Frequency Picture of Ultrafast Atomic Excitation in Strong Laser Fields.

Excitation and ionization in strong laser fields lies at the heart of such diverse research directions as high-harmonic generation and spectroscopy, laser-induced diffraction imaging, emission of femtosecond electron bunches from nanotips, self-guiding, filamentation and mirrorless lasing during propagation of light in atmospheres. While extensive quantum mechanical and semiclassical calculations on strong-field ionization are well backed by sophisticated experiments, the existing scattered theoretical work aiming at a full quantitative understanding of strong-field excitation lacks experimental confirmation. Here we present experiments on strong-field excitation in both the tunneling and multiphoton regimes and their rigorous interpretation by time dependent Schrödinger equation calculations, which finally consolidates the seemingly opposing strong-field regimes with their complementary pictures. Most strikingly, we observe an unprecedented enhancement of excitation yields, which opens new possibilities in ultrafast strong-field control of Rydberg wave packet excitation and laser intensity characterization.

Full Dynamic Compound Inverse Method: Extension to General and Rayleigh damping

The present paper takes from the original output-only identification approach named Full Dynamic Compound Inverse Method (FDCIM), recently published on this journal by the authors, and proposes an innovative, much enhanced version, in the description of more general forms of structural damping, including for classically adopted Rayleigh damping. This has led to an extended FDCIM formulation, which offers superior performance, on all the targeted identification parameters, namely: modal properties, Rayleigh damping coefficients, structural features at the element-level and input seismic excitation time history. Synthetic earthquake-induced structural response signals are adopted as input channels for the FDCIM approach, towards comparison and validation. The identification algorithm is run first on a benchmark 3-storey shear-type frame, and then on a realistic 10-storey frame, also by considering noise added to the response signals. Consistency of the identification results is demonstrated, with definite superiority of this latter FDCIM proposal.

Design, Business Models, and Human-Technology Teamwork

I was at Apple’s Advanced Technology Group in the 1990s, a most exciting time in technology. In addition to many advances in technology and human-machine interfaces, the Internet was taking hold, w...

Percutaneous left atrial appendage closure: current state of the art.

The authors reviewed the seminal and more recent literature surrounding the major modalities for percutaneous left atrial appendage closure used in contemporary practice, with particular emphasis on safety and efficacy, technical challenges, and future developments. Along with the continued practice of surgical left atrial appendage closure, which has evolved substantially with the advent of clipping techniques, a number of percutaneous methods have been developed to close the left atrial appendage with endocardial, epicardial, and hybrid approaches. The last 18 months has seen the Food and Drug Administration approval of the WATCHMAN device for stroke prevention in the United States, the initiation of a randomized controlled trial to further examine the LARIAT device, and an increasing body of literature surrounding use of the AMPLATZER Amulet in Europe. Left atrial appendage closure is a promising alternative to systemic anticoagulation for stroke prevention in appropriate atrial fibrillation patients. The wealth of available data for the various modalities sheds light on the strengths and limitations of each, postprocedural complications and their management, and new areas for exploration. With a plethora of new devices on the horizon, it is a very exciting time in the field of 'appendage-ology' as we pursue new avenues to optimize care for atrial fibrillation patients.

Giuseppe Dossetti e le Officine bolognesi by Paolo Prodi

Reviewed by: Giuseppe Dossetti e le Officine bolognesi by Paolo Prodi Roy Domenico Giuseppe Dossetti e le Officine bolognesi. By Paolo Prodi. (Bologna: Società editrice il Mulino. 2016. Pp. 281. €24,00 paperback. ISBN 978-88-15-26352-0.) Paolo Prodi died on December 16, 2016, at the age of eighty-four. He taught modern history, focusing mainly on the Counter-Reformation era, at universities in Italy and abroad and served as rector of the University of Trent. He also served as a deputy in the Italian Parliament’s eleventh legislature in the 1990s and was widely known beyond academia as the brother of Prime Minister Romano Prodi. Giuseppe Dossetti e le Officine bolognesi is something of a memoir or perhaps a personal history of a place and an era, Bologna, particularly scholarly Bologna, in the 1950s and 1960s, and heavily influenced by a man, Giuseppe Dossetti, the Christian Democratic politician-turned-priest. Prodi will not, he declares, engineer a “general reconstruction,” but rather only provide “a few plugs” to the story (p. 98). Prodi delivers a personal story about his scholarly development in postwar Italy, where he struggled to develop a viable dissertation subject and negotiate that decision with his supervisors, particularly Hubert Jedin and Delio Cantimori. Prodi needed to justify his choice of Reformation-era Italy, focusing on the diocese of Bologna. Most graduate students should recognize and appreciate this saga. Prodi weaves his personal account into politics and the foundation of what is now known as the John XXIII Foundation for Religious Studies. From its start in the early 1950s the institution reflected the personality of its founder, Dossetti, a scholar, World War II Resistance leader, Catholic politician, and, later, priest. Would this “workshop” (officina), called initially the Center for Documentation (Centro di documentazione), be a place of scholarship or one of prayer and reflection? To what extent would it be connected to the University of Bologna? Prodi attributes the spring of 1955 as the beginning of major changes at the Center. In May Bologna’s archbishop, Cardinal Giacomo [End Page 150] Lercaro, pushed Dossetti to launch a bid in upcoming communal elections, hoping to get a Christian Democrat on the city council and challenging the city’s popular Communist mayor, Giuseppe Dozza. Dossetti reluctantly acquiesced, an act of submission that Prodi bitterly condemns as “contrary to the freedom of the Christian layman” (p. 65). Predictably, when the elections occurred the following year Dossetti lost and he eventually abandoned politics and entered the priesthood, distancing himself more and more from the institute that he founded. Others, such as the historian Giuseppe Alberigo took up most of the task of running it. Prodi continues the story through the Second Vatican Council, which he remembers as an “adventure” and the most exciting time in the Center’s history. For young scholars it opened new terrain for study, particularly in the areas of Scripture and religious history. By the end of the Council, furthermore, Dossetti had returned to the field, and the organization morphed into the Center for Documentation – Institute for Religious Sciences. Although the Second Vatican Council ultimately disappointed Dossetti and Prodi, the subsequent years witnessed impressive scholastic accomplishments until 1972 which Prodi considers to have been the “apex” of the institute’s influence. The narrative largely ends at that point although Prodi goes on to conclude with a section devoted to passages from Dossetti or about him. Roy Domenico The University of Scranton Copyright © 2017 The Catholic University of America Press

Revisiting the Curie-Von Schweidler Law for Dielectric Relaxation and Derivation of Distribution Function for Relaxation Rates as Zipf’s Power Law and Manifestation of Fractional Differential Equation for Capacitor

The classical power law relaxation, i.e. relaxation of current with inverse of power of time for a step-voltage excitation to dielectric—as popularly known as Curie-von Schweidler law is empirically derived and is observed in several relaxation experiments on various dielectrics studies since late 19th Century. This relaxation law is also regarded as “universal-law” for dielectric relaxations; and is also termed as power law. This empirical Curie-von Schewidler relaxation law is then used to derive fractional differential equations describing constituent expression for capacitor. In this paper, we give simple mathematical treatment to derive the distribution of relaxation rates of this Curie-von Schweidler law, and show that the relaxation rate follows Zipf’s power law distribution. We also show the method developed here give Zipfian power law distribution for relaxing time constants. Then we will show however mathematically correct this may be, but physical interpretation from the obtained time constants distribution are contradictory to the Zipfian rate relaxation distribution. In this paper, we develop possible explanation that as to why Zipfian distribution of relaxation rates appears for Curie-von Schweidler Law, and relate this law to time variant rate of relaxation. In this paper, we derive appearance of fractional derivative while using Zipfian power law distribution that gives notion of scale dependent relaxation rate function for Curie-von Schweidler relaxation phenomena. This paper gives analytical approach to get insight of a non-Debye relaxation and gives a new treatment to especially much used empirical Curie-von Schweidler (universal) relaxation law.

A one-pot synthesis of water soluble highly fluorescent silica nanoparticles.

We report a one-pot synthesis of water dispersible fluorescent silica nanoparticles (NPs) functionalized with terminal amine groups, starting from silicon tetrabromide (SiBr4) and aminopropyltriethoxy silane (APTES). The NPs range from 1 to 2 nm in diameter, and exhibit an intense blue emission with a quantum yield (QY) of around 34% in water. They were characterized using XRD, XPS, TEM and FTIR spectroscopy for structural analysis. A tentative mechanism explaining the origin of the NPs emission in the blue region is presented based on the distinctive features of their low temperature photoluminescence (PL), photoluminescence excitation (PLE) spectrum and time correlated single photon counting lifetime decay profiles. The outstanding PL QY and photostability of the NPs, together with their water dispersibility and biocompatibility, constitute a unique set of properties among existing silica NPs and enable the application of the NPs in various fields.

The Signaling Value of Peer Review

It is an exciting (and scary) time to be an editor and involved in authorship and publishing. There are so many new developments and initiatives that push the traditional boundaries of knowledge and information. The web is very democratic—Anyone can publish anything. This may take the form of digital scholarship, on one hand—or alternative facts, on the other.

Ultrafast Broadband Saturable Absorption in Sb2Se3 Nanowires

Manipulating optical nonlinearity is a very fascinating prospective for both fundamental and technological purpose; offers a potential platform to explore the saturable absorption (SA) to the nanoscale limit. In this manuscript, we have focused on the tunable wavelength and pulse width dependent ultrafast broadband SA of Sb2Se3 nanowires in the resonant and the above bandgap excitations of 120 fs and 7 ns pulses. In this context, we numerically simulated the SA of Sb2Se3 nanowire with a two-level model. The solutions of the coupled rate equations for a Gaussian shaped pulse exactly reproduced the experimental results in both temporal and spatial domains. Our model provides a precise spacio-temporal analysis of carrier populations of each photo-excited state in the system. Moreover, excited state decay time (1.5 ns) and the ratio of excited state absorption cross section (σes) to the ground state absorption cross section (σgs) is less than unity for 1-D Sb2Se3 nanowires. Hence, Sb2Se3 nanowires can be employed as passive mode-lockers and essential photodetectors for ultrashort pulsed laser and can be tuned by wavelength and pulse width. These observations advise a remarkable nonlinear optical response which is expected to be comparable or even better than the graphene and 2D TMDC’s (MX2) like MoSe2, MoS2, WSe2, WS2 etc.

Snowy Campbell, Australian Pioneer Investigator of the Brain by Malcolm Macmillan

Health & History Ɣ 19/1 Ɣ 2017 127 Malcolm Macmillan, Snowy Campbell, Australian Pioneer Investigator of the Brain (Melbourne: Australian Scholarly Publishing, 2016). ISBN 978-1-925333-74-9 (PB) B&W and colour illustrations, xi + 390 pp. PioneeringAustralian neurologist, neuropathologist, and psychiatrist, Alfred Walter (‘Snowy’) Campbell, was notoriously reticent—as well as somewhat playful—about his medical achievements. When asked what he did during a period in England in the 1890s and early 1900s when he conducted a bevy of gifted research studies, he responded that when he wasn’t playing cricket he was shooting grouse! In this commendable biography by psychologist, Malcolm Macmillan, we learn that his modesty was matched by tenacity in grasping the opportunities that came his way. Campbell (1868–1937) was the sports-loving son of an innovative NSW farm manager of Scottish, Danish, and French extraction and a plucky mother who stood up to a band of bushrangers in an 1863 attack on the family home. She died after childbirth in 1870, leaving three young children including two-year-old ‘Snowy’. In adolescence he attended Oaklands School in Mittagong, NSW, which provided a classical education for boys ‘from families of more considerable means’. After achieving ‘decidedly inauspicious’ results in the senior public examinations held by the University of Sydney, he gained entry to Edinburgh University where he studied medicine from 1885 to 1889, his results improving over the years but not, according to Macmillan, to the stellar levels sometimes claimed for him. Soon after qualifying in medicine and surgery in Edinburgh, Campbell passed the Certi¿cate of Experience in Psychological Medicine, a credential offered by the Medico-Psychological Association for Great Britain and Ireland. It enabled him to work in several English county mental asylums, where he found himself attracted to the scienti¿c side of the work. A year in Vienna and Prague followed, with Campbell catapulted into several new and developing ¿elds, combining histology, pathology and bacteriology. The boy from country NSW intended ‘to take of¿ce in one of the few large institutions then affording collateral facilities for general administrative experience and special scienti¿c study’, but his aspirations expanded in line with the laboratories he sampled. At ¿rst he worked as a voluntary assistant in the pathology laboratory of Professor Heinrich Obersteiner, from the Neurological 128 BOOK REVIEWS Institute in Vienna, who had just published a major work on the structure of the central nervous system. He then gained experience in the laboratories of Professor Richard von Krafft-Ebing, head of Psychiatry at the University of Vienna, and those of Professors Arnold Pick and Hans Chiari in Prague. It was an exciting time to be in Europe with ongoing progress in identifying clinical phases of mental diseases and pathological changes in the brain, and in devising new techniques for postmortem examinations at a time when germ theory was challenging old notions of pathology and disease causation. At the very least, Campbell greatly expanded his histopathological methods while abroad and, after returning to Edinburgh in 1892, wrote his MD (Doctor of Medicine) thesis. It focussed on the nervous system changes associated with ‘alcoholic neuritis’, a painful condition of the hands, feet, and limbs. The following year, and still only in his mid-twenties, he joined the Lancaster County Asylum, called Rainhill, near Liverpool where he quickly rose from assistant medical of¿cer to mental hospital pathologist. During the next twelve years, he completed some trailblazing studies, resulting in more than forty publications. The topics were diverse and resulted in a wealth of papers on topics including the histopathology of shingles (herpes zoster) in collaboration with up-and-coming English neurologist, Henry Head, and on the bacterial causes of colitis (asylum dysentery), which was almost endemic in many mental hospitals. He also carried out a study on the then quite controversial topic of the rib strength of asylum patients and their proneness to fracture. This may sound like a humdrum subject, but Macmillan brings it to life, explaining that Campbell’s study method and conclusions served to debunk a treasured theory of some senior colleagues while also raising the possibility of nefarious staff practices that might explain some of the bone breakages in asylums. In the years...

Why a career in general practice is a rich and valuable one

There has never been a more exciting time to be a general practice nurse (GPN). I can confidently say this having spent most of my career in general practice. The difference today is the recognition that general practice nursing is a rich and valuable career option.

Some issues of industrial scale boron isotopes separation by the laser assisted retarded condensation (SILARC) method

Abstract More cheap production of boron isotopes is needed to provide further progress in nuclear engineering, microelectronics, and nuclear medicine. In this paper feasibility of boron isotopes separation scheme by laser assisted retarded condensation (SILARC) on industrial scale is investigated. Proposed industrial scale facility has a modular structure. Each module corresponds to irradiation cell with nozzle and skimmer installed on the opposite sides. BCl 3 was chosen as a target gas mixed at low molar fraction with argon carrier gas. Photo-absorption line, corresponding to 11 B 35 Cl 2 35 ; 37 Cl , can be excited by CO 2 laser emission line 10P(4), but corresponding to boron-10, has no overlap with CO 2 laser emission spectrum. Therefore, core gas flow will be enriched by boron-10. It is shown that continuous gas flow irradiation is preferable. In this case excitation time (gas flow length) is desirable to make as long as possible (its upper limit is constrained by optimal pressure and temperature range and condensation rate) in order to increase excitation probability. Saving of expensive laser photons is implemented by fabrication of irradiation cell as resonator. Increasing of isotope separation rate at smaller energy expenses can be provided by appropriate choice of gas flow expansion conditions, which include concentration of target gas, carrier gas choice, gas flow and ambient gas pressure and temperature. Related optimization criterion was introduced. It was found, that even at optimal conditions isotopes separation rate is rather small, which suggests, that isotope separation should be extracted iteratively. It was considered one of possible schemes for iterative isotope recovery on industrial scale. Corresponding final equilibrium isotopic concentration in product gas is rather small. Nevertheless, this method remains attractive, because energy spent per separated isotope is still significantly smaller than other prospective methods (about three times smaller than in Molecular Obliteration Laser induced Isotope Separation (MOLIS)).