Relevant bibliographies by topics / Zenith

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Zenith'

Author: Grafiati
Published: 4 June 2021
Last updated: 21 June 2025

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Journal articles on the topic "Zenith"

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Nomura, Suzy, Karina Maria Salvatore Freitas, Paula Patrícia Cotrin da Silva, et al. "Evaluation of the attractiveness of different gingival zeniths in smile esthetics." Dental Press Journal of Orthodontics 23, no. 5 (2018): 47–57. http://dx.doi.org/10.1590/2177-6709.23.5.047-057.oar.

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ABSTRACT Objective: To evaluate the smile attractiveness of different gingival zeniths by general dentists, orthodontists and laypersons and the esthetic perception in the symmetric and asymmetric changes in gingival zeniths. Methods: Posed photographs of five patients were taken and digitally manipulated in Keynote software, in the gingival zenith region, in increments of 0.5 to 1mm in maxillary central and lateral incisors, symmetrically and asymmetrically, in nine different ways for each patient. The photos were then uploaded to a website, where evaluators (general dentists, orthodontists and laypersons) could observe and vote according to their esthetic perception, scoring from 1 to 10, 1 being the least attractive and 10 the more attractive. Kruskal-Wallis and Mann-Whitney tests were used for comparison. Results: Asymmetric gingival zeniths were less attractive than symmetrical gingival zeniths; gingival zenith differences greater than 1mm were perceptible in the smile attractiveness, both by laypersons, general dentists and orthodontists. When comparing maxillary central incisors with maxillary lateral incisors, the aesthetic change performed in the central incisors are more perceptible than those performed in lateral incisors, both symmetrical and asymmetrical. In a general way, orthodontists and general dentists are more critical in the evaluation and perception of gingival zenith changes, with the laypersons perceiving this change only from 1mm of maxillary right central incisor asymmetrical change. Conclusions: Asymmetric gingival zeniths are less attractive than symmetrical ones. Gingival zenith differences greater than 1mm are perceptible in the smile attractiveness. Orthodontists and general dentists are more critical in evaluating smile esthetics.
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Ardelean, Andra, Roxana Buzatu, Otilia-Cornelia Bolos, Laura-Cristina Rusu, Anca Tudor, and Marius Traian Leretter. "DIGITAL AND ESTHETIC APPROACHES TO THE ASSESSMENT OF GINGIVAL AND DENTAL PARAMETERS." Romanian Journal of Oral Rehabilitation 16, no. 4 (2024): 732–41. https://doi.org/10.62610/rjor.2024.4.16.71.

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Aim of the study: The aim of the study was to evaluate the main dental and gingival parameters in order to quantify the differences between genders and between symmetrical elements on the two hemiarches.Materials and methods: The study was conducted on a sample of 52 patients (20 men and 32 women) without periodontal pathologies, dental abrasions, and with properly aligned maxillary teeth. Intraoral scans of the dental arches were performed using the Medit i700 scanner to obtain virtual 3D models. In the Medit Design application, measurements were taken of the distance between the zenith of the maxillary lateral incisor and the line connecting the zeniths of the maxillary central incisor and canine on the same hemi-arch, along with measurements of the width and height of the maxillary central incisor, calculating their proportions accordingly. Results: In 11.64% of cases, the zenith of the left lateral incisor was positioned apically relative to the line connecting the zenith of the left central incisor to that of the left canine, while in 88.36% of cases, it was positioned coronally to this line. On the right hemiarch, 17.31% of cases showed the lateral incisor’s zenith located apically to the line, whereas in 82.69% of cases, it was positioned coronally. Regarding the width-to-length ratio of the upper central incisors, no significant differences were observed between the values obtained for the left and right upper central incisors. Conclusions: No significant gender-based differences were demonstrated in the measured values from the zenith of the upper lateral incisor to the line connecting the zenith of the upper central incisor with that of the canine, nor were there significant differences between the two hemi-arches. Likewise, regarding the proportion of the upper central incisors, no significant differences were observed between genders, nor between the left and right upper central incisors.
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Singh, Jaswant. "Zenith Armor : Advancing Security with Zero Trust Measures." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem31326.

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In an era of unprecedented digital connectivity and evolving cyber threats, traditional security paradigms have proven insufficient to safeguard sensitive information. This research paper introduces "Zenith Armor," a comprehensive exploration and implementation of Zero Trust Architecture (ZTA) in the realm of cybersecurity. The paper delves into the core principles of ZTA, emphasizing the imperative shift from implicit trust to continuous verification in securing organizational assets. "Zenith Armor" stands as a testament to the evolving landscape of security frameworks, challenging conventional models by prioritizing identity verification, least privilege access, micro-segmentation, and continuous monitoring. The framework not only mitigates the risks associated with unauthorized access but also addresses the lateral movement of threats within a network, enhancing overall resilience. This paper outlines the essential components of Zenith Armor, emphasizing its dynamic risk assessment capabilities, stringent access control policies, and encryption measures for safeguarding data. Additionally, the framework's applicability to diverse devices, coupled with user education initiatives, creates a robust security ecosystem. The implementation extends beyond traditional network perimeters, incorporating adaptive security measures, and continuous updates. Furthermore, "Zenith Armor" recognizes the significance of a proactive approach to security incidents. A well-defined incident response plan, coupled with vendor and third-party access controls, ensures a swift and effective response to potential breaches. The research paper concludes with a reflection on the transformative potential of "Zenith Armor" in redefining organizational security postures. By embracing the Zero Trust paradigm, organizations can fortify their defenses against an ever-evolving threat landscape, thereby establishing a new zenith in cybersecurity resilience. Keywords—delves ,imperative, micro-segmentation,proactive, zenith.v
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, Yusuf Hidayat, Yuli Apriati, Siti Pauziah. "Penggunaan Pil Zenith (jenit) Pada Kalangan Remaja di Kelurahan Pekapuran Raya RT. 16 Kota Banjarmasin." PADARINGAN (Jurnal Pendidikan Sosiologi Antropologi) 3, no. 1 (2021): 357. http://dx.doi.org/10.20527/padaringan.v3i1.3033.

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Penelitian ini bertujuan untuk: (1) Menjelaskan faktor penyebab penggunaan pil zenith pada kalangan remaja (2) Menjelaskan perekrutan remaja untuk mengeketahui penggunaan pil zenith. Metode yang digunakan adalah metode kualitatif. Sumber data dipilih secara purposive Teknik pengumpulan data yang digunakan dalam penelitian yaitu observasi, wawancara dan dokumentasi. Teknik analisis data dipakai dalam penelitian ini yaitu reduksi data, penyajian data, dan menarik kesimpulan. Hasil penelitian ini menunjukan bahwa : (1) Faktor penyebab penggunaan pil zenith pada kalangan remaja adalah pertama, untuk meningkatkan kepercayaan didiri mereka. Kedua, Intensitas interaksi remaja dengan teman sebaya penggunaan pil zenith. Ketiga untuk menjaga dan mempererat pertemanan. (2) Perekrutan remaja untuk mengetahui penggunaan pil zenith dilakukan melalui (dua) pertama, pemberian imbalan jika menggunakan zenith berupa traktiran pembelian zenith. Kedua, terpengaruh teman untuk menggunakan, teman memberi pengaruh sangat besar untuk menggunakan pil zenith Berdasarkan hasil penelitian, dapat disarankan untuk para remaja, untuk teman sebaya, untuk apparat penengak hukum, untuk pemerintah pusat. yang terdiri dari 2 faktor penyebab penggunaan pil zenith dan perekrutan penggunaan pil zenith. Agar dapat membaca dan memberikan referensi untuk belajar memahami perilaku menyimpang yang dilakukan oleh kalangan remaja.
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James, N. "Rome's zenith commemorated." Antiquity 92, no. 362 (2018): 528–30. http://dx.doi.org/10.15184/aqy.2018.27.

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Following four centuries of Roman expansion, the Emperor Trajan led the Empire to its greatest extent by annexing Dacia (Transylvania), north-western Arabia and Sinai and, briefly, all of Armenia and Mesopotamia. He bolstered imperial administration, reformed provincial government, clarified certain principles of justice and encouraged a system of welfare, thealimenta(Bennett 2001). Last year, 2017, was the nineteen-hundredth anniversary of Trajan's death. The occasion was marked in various ways across Europe, and the opportunity to reflect on Trajan's legacy was particularly poignant in view of the continent's present troubles.
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Gurevich, A. V., K. P. Zybin, and H. C. Carlson. "Magnetic-Zenith Effect." Radiophysics and Quantum Electronics 48, no. 9 (2005): 686–99. http://dx.doi.org/10.1007/s11141-005-0113-7.

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Yang, Yao, Wanchao Ma, Zhe Wang, Kai Zhang, and Xikui Miao. "Research on Improved Method of Schlick Model Based on BRDF Measurement." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 36, no. 6 (2018): 1069–75. http://dx.doi.org/10.1051/jnwpu/20183661069.

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In simulating an infrared scene, the Schlick model uses a commonly-used bidirectional reflection distributional function(BRDF) model. Through simulation and BRDF measurement, this paper points out that the Schlick model is in better agreement with the actual output when the emerging zenith angle is smaller than the incident zenith angle. But when the emerging zenith angle is a certain angle larger than the incident zenith angle, the output of the function value may increase with the increasing emerging zenith angle and may not be in agreement with the actual output. In this paper, a new improved Schlick model is proposed, and a cosine compensation function is designed based on Lambert reflection principle. When the zenith angle is larger than the incident zenith angle, which guarantees the monotonous decreasing of the output of the function through the compensation function when the emerging zenith angle is larger than the incident zenith angle. The results on comparison with experimental data show that the improved Schlick model is basically in agreement with experimental results. The results on comparison with the heightened illumination effect of the fighters model show that the heightened illumination effect produced with the improved Schlick model is superior to that produced with the original Schlick model.
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Nistor, S., and A. S. Buda. "Using Different Mapping Function In GPS Processing For Remote Sensing The Atmosphere." Journal of Applied Engineering Sciences 5, no. 2 (2015): 73–80. http://dx.doi.org/10.1515/jaes-2015-0024.

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Abstract Due to development of GPS technology and by using the combination LC of L1 and L2 frequency the first order effect of the ionosphere tends to be canceled. Thus the main source of errors in the atmosphere which causes the delay in GPS signal is the neutral part of the atmosphere, usually referred to tropospheric delay. In general, the delay is computed at the zenith direction and it is referred to zenith tropospheric delay. The zenith tropospheric delay consist of two parts: zenith hydrostatic delay and zenith wet delay. The zenith hydrostatic delay can be very well modeled which accounts for nearly 90% to 100% of the atmospheric delay. The zenith wet delay is due to the water vapor and represents the “harder” part that need to be modeled caused by “unmixed” condition of the wet atmosphere. The influence of the zenith wet delay is around 0-40 cm. The aim of the article is to present the results obtain on the network of three station which were spread around the Oradea city using different types of mapping functions. The mapping functions are: global pressure and temperature – GPT2 and Vienna mapping function – VMF1. For the vertical studies to obtain the highest accuracy, the recommended mapping function is VMF1.
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Zhang, Wengang, Guirong Xu, Yuanyuan Liu, Guopao Yan, Dejun Li, and Shengbo Wang. "Uncertainties of ground-based microwave radiometer retrievals in zenith and off-zenith observations under snow conditions." Atmospheric Measurement Techniques 10, no. 1 (2017): 155–65. http://dx.doi.org/10.5194/amt-10-155-2017.

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Abstract. This paper is to investigate the uncertainties of microwave radiometer (MWR) retrievals in snow conditions and also explore the discrepancies of MWR retrievals in zenith and off-zenith observations. The MWR retrievals were averaged in a ±15 min period centered at sounding times of 00:00 and 12:00 UTC and compared with radiosonde observations (RAOBs). In general, the MWR retrievals have a better correlation with RAOB profiles in off-zenith observations than in zenith observations, and the biases (MWR observations minus RAOBs) and root mean square errors (RMSEs) between MWR and RAOB are also clearly reduced in off-zenith observations. The biases of temperature, relative humidity, and vapor density decrease from 4.6 K, 9 %, and 1.43 g m−3 in zenith observations to −0.6 K, −2 %, and 0.10 g m−3 in off-zenith observations, respectively. The discrepancies between MWR retrievals and RAOB profiles by altitude present the same situation. Cases studies show that the impact of snow on accuracies of MWR retrievals is more serious in heavy snowfall than in light snowfall, but off-zenith observation can mitigate the impact of snowfall. The MWR measurements become less accurate in snowfall mainly due to the retrieval algorithm, which does not consider the effect of snow, and the accumulated snow on the top of the radome increases the signal noise of MWR measurements. As the snowfall drops away by gravity on the sides of the radome, the off-zenith observations are more representative of the atmospheric conditions for RAOBs.
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Diego Mauricio Bravo-Calderón, María Fernanda Vera-Procel, Daniela Andrea Molina-Koppel, et al. "Gingival zenith evaluation in an Andean population from Ecuador." World Journal of Advanced Research and Reviews 9, no. 2 (2021): 095–102. http://dx.doi.org/10.30574/wjarr.2021.9.2.0046.

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Objectives: The aim of this study was to evaluate the characteristics of the gingival zenith of the maxillary incisors, canines and premolars in an Andean population from Ecuador. Materials and methods: A total of 51 subjects (30 men and 21 women; mean age = 21 years) with healthy gingival tissue were recruited. Digital study models were obtained from maxillary casts and the features of the gingival zeniths including its position, gingival lines and level in the lateral incisors were analyzed. Results: The gingival zenith was distally displaced in all the maxillary central and lateral incisors and in 70.59%; 62.74% and 91.17% of the canines, first and second premolars, respectively. For the maxillary anterior teeth, the greater mean of displacement was verified in central incisors (0.89mm ±0.27 SD), followed by the lateral incisors (0.58mm ±0.22 SD) and the canines (0.48mm ±0.21 SD). The displacement levels in the central incisors were significantly higher in females compared to male participants (p=0.037). In addition, the ascending gingival line was the most common in the anterior dentition (right: 52.9%; left: 51%), whereas the descending one was the most prevalent in the premolar area (right: 58.8%; left: 70.6%). Lastly, the gingival zeniths of lateral incisors were more frequently located coronal to the gingival line (86.27%), to a mean distance of 0.82mm (0.1 – 3.1mm; ±0.46 SD) and without significant differences among the genders (p=0.520). Conclusion: The data obtained from the present study could be taken into consideration during dental esthetic treatments, especially for Andean patients.
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Dissertations / Theses on the topic "Zenith"

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Roudnická, Michaela. "Zenith House." Master's thesis, Vysoké učení technické v Brně. Fakulta výtvarných umění, 2016. http://www.nusl.cz/ntk/nusl-240506.

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Diploma project Zenith House is trying to find and map a position of figural painting in a contemporary art world. Through a detailed study of works of contemporary painters, who use historical influences and compositions, it argues the evolution of painting. It slightly touches the phenomenom of portraiture and the contemporary trend of de-skilling the craftsmen.
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Tappero, Fabrizio Surveying &amp Spatial Information Systems Faculty of Engineering UNSW. "Remote synchronization method for the quasi-zenith satellite system." Publisher:University of New South Wales. Surveying & Spatial Information Systems, 2008. http://handle.unsw.edu.au/1959.4/41467.

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This dissertation presents a novel satellite timekeeping system which does not require on-board atomic clocks as used by existing navigation satellite systems such as GPS, GLONASS or the planned GALILEO system. This concept is differentiated by the employment of a synchronization framework combined with lightweight steerable on-board clocks which act as transponders re-broadcasting the precise time remotely provided by the time synchronization network located on the ground. This allows the system to operate optimally when satellites are in direct contact with the ground station, making it suitable for a system like the Japanese Quasi-Zenith Satellite System, QZSS. Low satellite mass and low satellite manufacturing and launch cost are significant advantages of this novel system. Two possible implementations of the time synchronization network for QZSS are presented. Additionally, the problem of satellite communication interruption is analyzed and a solution is presented. Finally a positioning and timing quality analysis, aimed to provide understanding of the actual timing quality requirements for QZSS, is presented.
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Fabry, Frédéric. "Precipitation estimates by radar : a zenith pointing radar perspective." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59887.

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Data collected from zenith pointing radar is used to study the range dependence of some meteorological radar errors associated with different sampling methods between radar and gauges in stratiform precipitation. Errors due to the vertical variation of reflectivity such as those related with the bright band or with snow growth cause a much larger bias in radar estimates than those due to beam filling or gradients. The maximum useful range varies with the bright band height and the elevation angle program used, a CAPPI giving superior results especially for snow. The sudden changes in bright band height over short distances and the large scatter of its thickness limit the accuracy of current corrections for the vertical variation of reflectivity based on scanning radar data. The possibility of using a zenith pointing radar to obtain this correction is discussed.
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Suminska-Ebersoldt, Olga [Verfasser]. "Stratospheric ClOOCl chemistry at high solar zenith angles / Olga Suminska-Ebersoldt." Wuppertal : Universitätsbibliothek Wuppertal, 2012. http://d-nb.info/1029847762/34.

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Reeves, Nicholas. "Constructing an instrument : Nevil Maskelyne and the zenith sector, 1760-1774." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611702.

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Payne, Gregory N. "Implementation of the core graphics system on the Zenith Z-100." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 1985. http://digitalcommons.auctr.edu/dissertations/2622.

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This thesis concerns the implementation of the CORE GRAPHICS SYSTEM on the ZENITH Z-100 microcomputer, using the MS-DOS operating system and the MICROSOFT PASCAL programming language. The system gives the user the ability to create graphic displays via computer utilizing either a printer or a CRT. The basic features of the system, the problems encountered in its implementation, the general principles used, and an operations guide are documented within the paper. There are programming examples to illustrate the usage of the different system commands and there is documented source code of all system subroutines.
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Vinson, Heather K. "The blue zenith: establishing ethos in narrative journalism, past and present." Thesis, Boston University, 1998. https://hdl.handle.net/2144/27790.

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Boston University. University Professors Program Senior theses.<br>PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>2031-01-02
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Nunes, Mônica Soares 1987. "Medidas de intensidade de múons cósmicos com cintiladores plásticos." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/276950.

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Orientador: Ernesto Kemp<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-27T11:36:07Z (GMT). No. of bitstreams: 1 Nunes_MonicaSoares_M.pdf: 4211832 bytes, checksum: 7414fb6290c92c79d1f11b0fdd3707db (MD5) Previous issue date: 2015<br>Resumo: O estudo da radiação cósmica é de extrema importância para a astrofísica. Partículas oriundas de diferentes locais, tanto do sistema solar, quanto fora dele, chegam constantemente à Terra, carregando muitas informações a respeito da sua origem. Quando essas partículas encontram a atmosfera terrestre da-se início a uma cascata de partículas secundárias resultantes da interação do raio cósmico primário com a atmosfera. Dessa chuva de partículas secundárias, os múons são as partículas carregadas mais abundantes que chegam à superfície da Terra. Múons são altamente penetrantes, o que pode representar um problema muito grande em ex- perimentos, mesmo que subterrâneos, de outras partículas. Devido ao seu grande número, eles se tornam extremamente necessários em reconstruções de chuveiros atmosféricos para obtenção de informações a respeito da partícula primária. Tendo conhecimento de suas características, como por exemplo fluxo, ruídos em experimentos podem ser tratados e outros estudos podem ser otimizados. A intensidade de múons na superfície terrestre é bem conhecida como sendo anisotrópica e com uma dependência do ângulo zenital da forma ? (?) = ?0?osn(?). Por simplicidade nos cálculos, este expoente n é freqüentemente utilizado com valor igual a 2, mas estudos mostram que este parâmetro possui dependência com a posição geográfica e com a faixa de energia dos múons em questão. Esta dissertação propõe um método simples para a precisa determinação do expoente n e da intensidade vertical de múons simultaneamente, que pode ser realizado de maneira rá- pida em qualquer laboratório de raios cósmicos, utilizando detectores de partículas, que juntos formam o chamado Telescópio de Múons. Como resultado da aplicação do método no Laboratório de Léptons em Campinas - SP, foi obtido um valor de n de aproximadamente 2.30 e um valor para a intensidade vertical de múons em torno de 146.40? z/m2sr. Dados muito satisfatórios e de acordo com outros experimentos semelhantes já realizados anteriormente no Laboratório. O método também foi aplicado no Fermilab, localizado nos Estados Unidos. Nesta outra loca- lização geográfica, os resultados diferiram bastante dos obtidos em Campinas, com n aproxima- damente 3.66 e intensidade vertical de múons em torno de 158.33 ? zm-2sr-1. O mesmo experimento com o telescópio será realizado em outras posições geográficas afim de se verificar o comportamento do expoente n e da intensidade vertical de múons em diferentes locais<br>Abstract: The study of cosmic radiation is of utmost importance to astrophysics. Particles from different locations, from inside the solar system, and outside it, constantly arrive on Earth, carrying a lot of information about its origin. When these particles arrives to Earth¿s atmosphere they initiate a cascade of secondary particles resulting from the interaction of the primary cosmic ray with the atmosphere. From this rain of secondary particles, muons are the most abundant charged particles that reach the Earth¿s surface.Muons are highly penetrating, which can be a very big problem in some experiments, even if underground, of other particles. Because of their large number, they become extremely necessary in reconstructions of air showers to obtain information about the primary particle. Having knowledge of its characteristics, such as flux and distribution, noise in some experiments can be treated and other studies can be optimized.Muon intensity in the Earth¿s surface is well known to be anisotropic and has dependence on the zenith angle of ? (?) = ?0 cosn(?). For simplicity in the calculations, this n exponent is often used with a value of 2, but studies show that this parameter has dependence on the geographical position and on the energy range of muons in question. This dissertation proposes a simple method for accurate determination of the exponent n and muon vertical intensity simultaneously, that can be determined quickly in any laboratory cosmic rays using a particle detector, which was called Muon Telescope. As a result of the application of the method on the Leptons Laboratory, in Campinas - SP - Brazil, the value for n that was obtained is about 2.30 and a value for the vertical intensity of muons around 146.40? z/m2sr. This data is very satisfactory and according to similar experiments previously conducted at the Laboratory.This method was applied on Fermilab, located at the United States. On this new geographical location, the results were different from that obtained at Campinas, with n about 3.66 and the vertical intensity around 158.33 ? zm-2sr-1.The same experiment with the telescope will be held in other geographical locations in order to check the n exponent behavior and the muon intensity at different locations<br>Mestrado<br>Física<br>Mestra em Física
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Mohamed-Tahrin, Norhaslinda. "Ground-based zenith-sky measurements of stratospheric BrO by ultraviolet absorption spectroscopy." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620660.

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Gao, Hua. "Sensor view angle and solar zenith angle effects on grassland canopy spectra." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277935.

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The experiment was conducted at the Kendall Site of the Walnut Gulch Experiment Watershed in southeastern Arizona during the 1990 growing season. A special apparatus for mounting a spectroradiometer and acquiring bidirectional reflectance data was constructed and used over a semi-desert grassland plot. For purposes of analyzing multidirectional vegetation spectral behavior, the Normalized Difference Vegetation Index (NDVI) and Soil Adjusted Vegetation Index (SAVI) were calculated as a function of view angle and solar zenith angle throughout the growing season. The results have shown that the SAVI considerably minimized anisotropic behavior whereas the NDVI was very sensitive to both solar zenith and view angles. With further refinement the SAVI offers a technique whereby satellite measurements of vegetation activity could be further understood.
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Books on the topic "Zenith"

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Grant, Morrison. Zenith. Titan, 1990.

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Lukin, S. Gorod, ustremlennyĭ v zenit =: The Zenith City. Karelii͡a︡, 1990.

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Lewis, Trondheim, and Boulet, eds. Dungeon: Zenith. NBM, 2009.

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Cones, Harold N. Zenith Radio. Schiffer Pub., 1997.

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translator, Schwartz Ros, ed. Zenith hotel. Arcadia Books, 2014.

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Lewis, Trondheim, ed. Dungeon: Zenith. NBM, 2003.

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Sterling, Bruce. The Zenith Angle. Random House Publishing Group, 2004.

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Parker, Jake, Dave Pasciuto, Dave Pasciuto, Dave Pasciuto, and Steve Talkowski. Robot Envy : Zenith: Zenith. Lion Forge, LLC, The, 2016.

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Penner, Jenetta. Zenith. Independently Published, 2019.

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Zenith. Heinemann Educational Publishers, 2000.

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Book chapters on the topic "Zenith"

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Rouan, Daniel. "Zenith." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_4017.

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Rouan, Daniel. "Zenith." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_4017.

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Douglas, Roy. "Zenith." In Liquidation of Empire. Palgrave Macmillan UK, 2002. http://dx.doi.org/10.1057/9780230554566_1.

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Rouan, Daniel. "Zenith." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_4017.

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Rouan, Daniel. "Zenith." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_4017-3.

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Bianchini, Natka. "American Zenith." In Samuel Beckett’s Theatre in America. Palgrave Macmillan US, 2015. http://dx.doi.org/10.1057/9781137439864_6.

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Feuchtwanger, E. J. "Zenith 1868–73." In Gladstone. Palgrave Macmillan UK, 1989. http://dx.doi.org/10.1007/978-1-349-19783-5_8.

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Kpodonu, Jacques. "Zenith TX2 Thoracic Endograft." In Manual of Thoracic Endoaortic Surgery. Springer London, 2010. http://dx.doi.org/10.1007/978-1-84996-296-4_18.

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Faludi, Andreas, and Arnold Van Der Valk. "Doctrine at the Zenith." In The GeoJournal Library. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-2927-7_8.

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Glenthøj, Rasmus, and Morten Nordhagen Ottosen. "From Zenith to Twilight." In War, Culture and Society, 1750–1850. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-46557-4_8.

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Conference papers on the topic "Zenith"

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Liu, Yaqi, Yaxin Li, and Di Wu. "Suppressing Zenith Directional Radiation Using Collinear Array for STAR Antennas." In 2024 IEEE 12th Asia-Pacific Conference on Antennas and Propagation (APCAP). IEEE, 2024. https://doi.org/10.1109/apcap62011.2024.10881653.

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Collins, Dan, Josh Gigantino, and Aubrey Wigner. "Zenith object detector (ZOD)." In ACM SIGGRAPH 2014 Studio. ACM Press, 2014. http://dx.doi.org/10.1145/2619195.2656331.

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Schröder, F. "Observations at large zenith angles." In GeV-TeV gamma ray astrophysics workshop. AIP, 2000. http://dx.doi.org/10.1063/1.1291391.

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Leavens, David. "The Method of Validation by Zenith." In The Evolution of Language. Proceedings of the 12th International Conference on the Evolution of Language (Evolang12). Wydawnictwo Naukowe Uniwersytetu Mikołaja Kopernika, 2018. http://dx.doi.org/10.12775/3991-1.058.

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Fatemi, Seyyed A., and Anthony Kuh. "Solar radiation forecasting using zenith angle." In 2013 IEEE Global Conference on Signal and Information Processing (GlobalSIP). IEEE, 2013. http://dx.doi.org/10.1109/globalsip.2013.6736930.

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Malik, Jabir Shabbir. "Analysis and Estimation of Zenith Wet Delay and Zenith Tropospheric Total Delay at Earth’s different Geographical Areas." In 2021 Seventh International Conference on Aerospace Science and Engineering (ICASE). IEEE, 2021. http://dx.doi.org/10.1109/icase54940.2021.9904142.

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Chaudhry, Vikhyat, and Ishan Mishra. "ZENITH: A Nano-Satellite for Atmospheric Monitoring." In SAE 2015 AeroTech Congress & Exhibition. SAE International, 2015. http://dx.doi.org/10.4271/2015-01-2395.

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Xu, Jinlai, Balaji Palanisamy, Heiko Ludwig, and Qingyang Wang. "Zenith: Utility-Aware Resource Allocation for Edge Computing." In 2017 IEEE International Conference on Edge Computing (EDGE). IEEE, 2017. http://dx.doi.org/10.1109/ieee.edge.2017.15.

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Murai, Yoshiyuki. "Project Overview of the Quasi-Zenith Satellite System." In 29th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2016). Institute of Navigation, 2016. http://dx.doi.org/10.33012/2016.14642.

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Wu, Chiu-Mei, Shau-Shiun Jan, and Takeyasu Sakai. "Evaluation of Quasi � Zenith Satellite System L5S Signal." In 2018 International Technical Meeting of The Institute of Navigation. Institute of Navigation, 2018. http://dx.doi.org/10.33012/2018.15597.

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Reports on the topic "Zenith"

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Flynn, Connor J. Shortwave Array Spectroradiometer–Zenith (SASZe) Instrument Handbook. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1251415.

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Chiu, C., A. Marshak, G. Hodges, JC Barnard, and J. Schmelzer. Narrow Field of View Zenith Radiometer (NFOV) Handbook. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/1020260.

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Widener, K., N. Bharadwaj, and K. Johnson. Ka-Band ARM Zenith Radar (KAZR) Instrument Handbook. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1035855.

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Clawson, Deborah M., Michael J. Oehler, Shawn M. Rovansek, Walter K. Roddy, Reggie Sharpless, and Benton A. Wigney. Final Evaluation Report of ALC Group Tigersafe (Zenith Version). Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada247240.

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Chiu, J. Y. C., L. Gregory, and R. Wagener. MAGIC Cloud Properties from Zenith Radiance Data Final Campaign Summary. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1242830.

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Johnson, Karen, Tami Fairless, and Scott Giangrande. Ka-Band ARM Zenith Radar Corrections (KAZRCOR, KAZRCFRCOR) Value-Added Products. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1398986.

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Johnson, Karen, Tami Fairless, and Scott Giangrande. Ka-Band ARM Zenith Radar Corrections (KAZRCOR, KAZRCFRCOR) Value-Added Products. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1647336.

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Meyer, Erik. Night skies data report: Photometric assessment of night sky quality at Sequoia and Kings Canyon National Parks. National Park Service, 2025. https://doi.org/10.36967/2308859.

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This report characterizes night sky conditions in Sequoia and Kings Canyon National Parks (SEKI) using measurements made in the park unit and models of regional conditions based on satellite data. Calibrated night sky imagery was obtained to characterize the night sky at 5 sites. These ground-based observations were collected on 8 nights from 2004-06-12 to 2009-07-21. Satellite data from 2022 was used to create a map of predicted night sky conditions in and around the park. The sky overhead remains pristine with an average zenith brightness of 21.63 mag/arcsec2. We estimate more than 91% of stars were visible throughout the data collection period, providing an excellent opportunity to observe the natural night sky from the park during cloudless, new moon conditions. The whole sky over SEKI is 18%–74% (mean=53%) brighter than average natural levels, indicating impaired dark sky conditions on average. In SEKI, we classified the sky as Bortle Class 4: rural/suburban transition, based on the visibility of astronomical objects. The average naked eye limiting magnitude (NELM) is 6.75, which is approaching near pristine under average conditions. Our Sky Quality Meter (SQM) measurements average 21.74 mag/arcsec2, indicating the zenith is darker than what we can accurately measure with an SQM. Fairly obvious light-pollution domes are apparent over population centers in several directions. The zodiacal light is clearly evident but doesn’t even extend halfway to the zenith at the beginning or end of twilight. The Milky Way well above the horizon is still impressive but lacks all but the most obvious structure. The main impacts on SEKI’s night sky quality were the light domes from Los Angeles, Fresno, Visalia, Bakersfield, Porterville, Clovis, Tulare, Las Vegas, and Hanford. These light domes were observed along the horizon, with a few nearing the natural brightness of the Milky Way.
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White, Kelsey. Night skies data report: Photometric assessment of night sky quality at Cumberland Island National Seashore. National Park Service, 2025. https://doi.org/10.36967/2313314.

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This report characterizes night sky conditions in Cumberland Island National Seashore (CUIS) using measurements made in the park unit and models of regional conditions based on satellite data. Calibrated night sky imagery was obtained to characterize the night sky at one site. These ground-based observations were collected on the night of March 9, 2018. Satellite data from 2023 were used to create a map of predicted night sky conditions in and around the park. The sky overhead is influenced by moderate light pollution with a single measurement zenith brightness of 20.86 mag/arcsec2. We estimate more than 43% naked eye stars were visible throughout the data collection period, providing an opportunity to partially view the natural night sky from the park during a cloudless, moonless night. The whole sky over CUIS is 416% brighter than natural levels, indicating that natural night sky conditions are not readily visible, on average. In CUIS, we classified the sky as Bortle Class 4: rural/suburban transition, based on the visibility of astronomical objects. Our Sky Quality Meter (SQM) recorded a single measurement of 20.77 mag/arcsec2, indicating a quality of moderate condition. Obvious light-pollution domes are apparent over population centers in several directions. The zodiacal light is evident but does not extend halfway to the zenith at the beginning or end of twilight. The Milky Way well above the horizon is still impressive but lacks all but the most obvious structure. The main impacts on CUIS’s night sky quality were the light domes from St. Marys, Jacksonville, Yulee, Kings Bay Base, Fernandina Beach, Kingsland, Brunswick, St. Simons, Jacksonville Beach, and Savannah.
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Johnson, Karen, Scott Giangrande, and Aifang Zhou. Ka-Band ARM Zenith Radar (KAZR) Active Remote Sensing of Clouds (ARSCL) CloudSat Calibration (KAZRARSCL-CLOUDSAT) Value-Added Product Report. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1847644.

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