Explaining Chemical Reactions
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Needle Roller and Cage Assemblies B-003〜022
*保持器付針状/B001-005_*保持器付針状/B001-005 11/05/24 20:31 ページ 1 Needle roller and cage assemblies B-003〜022 Needle roller and cage assemblies for connecting rod bearings B-023〜030 Drawn cup needle roller bearings B-031〜054 Machined-ring needle roller bearings B-055〜102 Needle Roller Bearings Machined-ring needle roller bearings, B-103〜120 BEARING TABLES separable Self-aligning needle roller bearings B-121〜126 Inner rings B-127〜144 Clearance-adjustable needle roller bearings B-145〜150 Complex bearings B-151〜172 Cam followers B-173〜217 Roller followers B-218〜240 Thrust roller bearings B-241〜260 Components Needle rollers / Snap rings / Seals B-261〜274 Linear bearings B-275〜294 One-way clutches B-295〜299 Bottom roller bearings for textile machinery Tension pulleys for textile machinery B-300〜308 *保持器付針状/B001-005_*保持器付針状/B001-005 11/05/24 20:31 ページ 2 B-2 *保持器付針状/B001-005_*保持器付針状/B001-005 11/05/24 20:31 ページ 3 Needle Roller and Cage Assemblies *保持器付針状/B001-005_*保持器付針状/B001-005 11/05/24 20:31 ページ 4 Needle roller and cage assemblies NTN Needle Roller and Cage Assemblies This needle roller and cage assembly is one of the or a housing as the direct raceway surface, without using basic components for the needle roller bearing of a inner ring and outer ring. construction wherein the needle rollers are fitted with a The needle rollers are guided by the cage more cage so as not to separate from each other. The use of precisely than the full complement roller type, hence this roller and cage assembly enables to design a enabling high speed running of bearing. -
Timeline .Pdf
Timeline of Egyptian History 1 Ancient Egypt (Languages: Egyptian written in hieroglyphics and Hieratic script) Timeline of Egyptian History 2 Early Dynastic Period 3100–2686 BCE • 1st & 2nd Dynasty • Narmer aka Menes unites Upper & Lower Egypt • Hieroglyphic script developed Left: Narmer wearing the crown of Lower Egypt, the “Deshret”, or Red Crown Center: the Deshret in hieroglyphics; Right: The Red Crown of Lower Egypt Narmer wearing the crown of Upper Egypt, the “Hedjet”, or White Crown Center: the Hedjet in hieroglyphics; Right: The White Crown of Upper Egypt Pharaoh Djet was the first to wear the combined crown of Upper and Lower Egypt, the “Pschent” (pronounced Pskent). Timeline of Egyptian History 3 Old Kingdom 2686–2181 BCE • 3rd – 6th Dynasty • First “Step Pyramid” (mastaba) built at Saqqara for Pharaoh Djoser (aka Zoser) Left: King Djoser (Zoser), Righr: Step pyramid at Saqqara • Giza Pyramids (Khufu’s pyramid – largest for Pharaoh Khufu aka Cheops, Khafra’s pyramid, Menkaura’s pyramid – smallest) Giza necropolis from the ground and the air. Giza is in Lower Egypt, mn the outskirts of present-day Cairo (the modern capital of Egypt.) • The Great Sphinx built (body of a lion, head of a human) Timeline of Egyptian History 4 1st Intermediate Period 2181–2055 BCE • 7th – 11th Dynasty • Period of instability with various kings • Upper & Lower Egypt have different rulers Middle Kingdom 2055–1650 BCE • 12th – 14th Dynasty • Temple of Karnak commences contruction • Egyptians control Nubia 2nd Intermediate Period 1650–1550 BCE • 15th – 17th Dynasty • The Hyksos come from the Levant to occupy and rule Lower Egypt • Hyksos bring new technology such as the chariot to Egypt New Kingdom 1550–1069 BCE (Late Egyptian language) • 18th – 20th Dynasty • Pharaoh Ahmose overthrows the Hyksos, drives them out of Egypt, and reunites Upper & Lower Egypt • Pharaoh Hatshepsut, a female, declares herself pharaoh, increases trade routes, and builds many statues and monuments. -
Sothic Cycle - Wikipedia
12/2/2018 Sothic cycle - Wikipedia Sothic cycle The Sothic cycle or Canicular period is a period of 1,461 Egyptian civil years of 365 days each or 1,460 Julian years averaging 365¼ days each. During a Sothic cycle, the 365-day year loses enough time that the start of its year once again coincides with the heliacal rising of the star Sirius (Ancient Egyptian: Spdt or Sopdet, "Triangle"; Greek: Σῶθις, Sō̂this) on 19 July in the Julian calendar.[1][a] It is an important aspect of Egyptology, particularly with regard to reconstructions of the Egyptian calendar and its history. Astronomical records of this displacement may have been responsible for the later establishment of the more accurate Julian and Alexandrian calendars. Sirius (bottom) and Orion (right). The Winter Triangle is formed Contents from the three brightest stars in the northern winter sky: Sirius, Mechanics Betelgeuse (top right), and Discovery Procyon (top left). Chronological interpretation Observational mechanics and precession Problems and criticisms Notes References External links Mechanics The ancient Egyptian civil year, its holidays, and religious records reflect its apparent establishment at a point when the return of the bright star Sirius to the night sky was considered to herald the annual flooding of the Nile.[2] However, because the civil calendar was exactly 365 days long and did not incorporate leap years until 22 BC, its months "wandered" backwards through the solar year at the rate of about one day in every four years. This almost exactly corresponded to its displacement against the Sothic year as well. (The Sothic year is about a minute longer than a solar year.)[2] The sidereal year of 365.25636 days is only valid for stars on the ecliptic (the apparent path of the Sun across the sky), whereas Sirius's displacement ~40˚ below the ecliptic, its proper motion, and the wobbling of the celestial equator cause the period between its heliacal risings to be almost exactly 365.25 days long instead. -
Chapter 5 – Date
Chapter 5 – Date Luckily, most of the problems involving time have mostly been solved and packed away in software and hardware where we, and our customers overseas, do not have to deal with it. Thanks to standardization, if a vender in Peking wants to call a customer in Rome, he checks the Internet for the local time. As far as international business goes, it’s generally 24/7 anyway. Calendars on the other hand, are another matter. You may know what time it is in Khövsgöl, Mongolia, but are you sure what day it is, if it is a holiday, or even what year it is? The purpose of this chapter is to make you aware of just how many active calendars there are out there in current use and of the short comings of our Gregorian system as we try to apply it to the rest of the world. There just isn’t room to review them all so think of this as a kind of around the world in 80 days. There are so many different living calendars, and since the Internet is becoming our greatest library yet, a great many ancient ones that must be accounted for as well. We must consider them all in our collations. As I write this in 2010 by the Gregorian calendar, it is 2960 in Northwest Africa, 1727 in Ethopia, and 4710 by the Chinese calendar. A calendar is a symbol of identity. They fix important festivals and dates and help us share a common pacing in our lives. They are the most common framework a civilization or group of people can have. -
Cophylogeny of Figs, Pollinators, Gallers, and Parasitoids
GRBQ316-3309G-C17[225-239].qxd 09/14/2007 9:52 AM Page 225 Aptara Inc. SEVENTEEN Cophylogeny of Figs, Pollinators, Gallers, and Parasitoids SUMMER I. SILVIEUS, WENDY L. CLEMENT, AND GEORGE D. WEIBLEN Cophylogeny provides a framework for the study of historical host organisms and their associated lineages is the first line of ecology and community evolution. Plant-insect cophylogeny evidence for cospeciation. On the other hand, phylogenetic has been investigated across a range of ecological conditions incongruence may indicate other historical patterns of associ- including herbivory (Farrell and Mitter 1990; Percy et al. ation, including host switching. When host and associate 2004), mutualism (Chenuil and McKey 1996; Kawakita et al. topologies and divergence times are more closely congruent 2004), and seed parasitism (Weiblen and Bush 2002; Jackson than expected by chance (Page 1996), ancient cospeciation 2004). Few examples of cophylogeny across three trophic lev- may have occurred. Incongruence between phylogenies els are known (Currie et al. 2003), and none have been studies requires more detailed explanation, including the possibility of plants, herbivores, and their parasitoids. This chapter that error is associated with either phylogeny estimate. Ecolog- compares patterns of diversification in figs (Ficus subgenus ical explanations for phylogenetic incongruence include Sycomorus) and three fig-associated insect lineages: pollinat- extinction, “missing the boat,” host switching, and host-inde- ing fig wasps (Hymenoptera: Agaonidae: Agaoninae: Cer- pendent speciation (Page 2003). “Missing the boat” refers to atosolen), nonpollinating seed gallers (Agaonidae: Sycophagi- the case where an associate tracks only one of the lineages fol- nae: Platyneura), and their parasitoids (Agaonidae: lowing a host-speciation event. -
Land, Property Rights and Institutional Durability in Medieval Egypt
Land, Property Rights and Institutional Durability in Medieval Egypt Lisa Blaydes - Stanford University LSE-Stanford-Universidad de los Andes Conference on Long-Run Development in Latin America, London School of Economics and Political Science, 16-17 May 2018 Land, Property Rights and Institutional Durability in Medieval Egypt Lisa Blaydes∗ Associate Professor Department of Political Science Stanford University April 2018 Abstract Historical institutionalists have long been concerned with the conditions under which political institutions provoke their own processes of internal change. Using data on changing landholding patterns during the Mamluk Sultanate (1250-1517 CE), I demon- strate that land shifted from temporary and revocable land grants offered in exchange for service to Islamic religious endowments and hybridized land types, representing a transformation away from state authority over agricultural resources to more priva- tized forms of property control. Predation on collective state resources by individual mamluks | state actors themselves | was a negative externality associated with the foundational principle of the impermissibility of transferring mamluk status to one's sons. My characterization of mamluk political institutions provides an empirical il- lustration of a self-undermining equilibrium with implications for understanding how Middle Eastern political institutions differed from those in other world regions, partic- ularly medieval Europe. ∗Many thanks to Connor Kennedy, Shivonne Logan, Vivan Malkani and Kyle Van Rensselaer for out- standing research assistance. Scott Abramson, Gary Cox, David Laitin, Hans Lueders and Yuki Takagi provided helpful comments and assistance. 1 What explains institutional durability? An influential literature suggests that institu- tional equilibria can be indirectly strengthened or weakened by processes dynamically intro- duced by the institutions themselves (Greif and Laitin 2004). -
Revision of the Genus Ficus L. (Moraceae) in Ethiopia (Primitiae Africanae Xi)
582.635.34(63) MEDEDELINGEN LANDBOUWHOGESCHOOL WAGENINGEN • NEDERLAND • 79-3 (1979) REVISION OF THE GENUS FICUS L. (MORACEAE) IN ETHIOPIA (PRIMITIAE AFRICANAE XI) G. AWEKE Laboratory of Plant Taxonomy and Plant Geography, Agricultural University, Wageningen, The Netherlands Received l-IX-1978 Date of publication 27-4-1979 H. VEENMAN & ZONEN B.V.-WAGENINGEN-1979 BIBLIOTHEEK T)V'. CONTENTS page INTRODUCTION 1 General remarks 1 Uses, actual andpossible , of Ficus 1 Method andarrangemen t ofth e revision 2 FICUS L 4 KEY TOTH E FICUS SPECIES IN ETHIOPIA 6 ALPHABETICAL TREATMENT OFETHIOPIA N FICUS SPECIES 9 Ficus abutilifolia (MIQUEL)MIQUEL 9 capreaefolia DELILE 11 carica LINNAEUS 15 dicranostyla MILDBRAED ' 18 exasperata VAHL 21 glumosu DELILE 25 gnaphalocarpa (MIQUEL) A. RICHARD 29 hochstetteri (MIQUEL) A. RICHARD 33 lutea VAHL 37 mallotocarpa WARBURG 41 ovata VAHL 45 palmata FORSKÀL 48 platyphylla DELILE 54 populifolia VAHL 56 ruspolii WARBURG 60 salicifolia VAHL 62 sur FORSKÂL 66 sycomorus LINNAEUS 72 thonningi BLUME 78 vallis-choudae DELILE 84 vasta FORSKÂL 88 vogelii (MIQ.) MIQ 93 SOME NOTES ON FIGS AND FIG-WASPS IN ETHIOPIA 97 Infrageneric classification of Hewsaccordin gt o HUTCHINSON, related to wasp-genera ... 99 Fig-wasp species collected from Ethiopian figs (Agaonid associations known from extra- limitalsample sadde d inparentheses ) 99 REJECTED NAMES ORTAX A 103 SUMMARY 105 ACKNOWLEDGEMENTS 106 LITERATURE REFERENCES 108 INDEX 112 INTRODUCTION GENERAL REMARKS Ethiopia is as regards its wild and cultivated plants, a recognized centre of genetically important taxa. Among its economic resources, agriculture takes first place. For this reason, a thorough knowledge of the Ethiopian plant cover - its constituent taxa, their morphology, life-cycle, cytogenetics etc. -
Country Coding Units
INSTITUTE Country Coding Units v11.1 - March 2021 Copyright © University of Gothenburg, V-Dem Institute All rights reserved Suggested citation: Coppedge, Michael, John Gerring, Carl Henrik Knutsen, Staffan I. Lindberg, Jan Teorell, and Lisa Gastaldi. 2021. ”V-Dem Country Coding Units v11.1” Varieties of Democracy (V-Dem) Project. Funders: We are very grateful for our funders’ support over the years, which has made this ven- ture possible. To learn more about our funders, please visit: https://www.v-dem.net/en/about/ funders/ For questions: [email protected] 1 Contents Suggested citation: . .1 1 Notes 7 1.1 ”Country” . .7 2 Africa 9 2.1 Central Africa . .9 2.1.1 Cameroon (108) . .9 2.1.2 Central African Republic (71) . .9 2.1.3 Chad (109) . .9 2.1.4 Democratic Republic of the Congo (111) . .9 2.1.5 Equatorial Guinea (160) . .9 2.1.6 Gabon (116) . .9 2.1.7 Republic of the Congo (112) . 10 2.1.8 Sao Tome and Principe (196) . 10 2.2 East/Horn of Africa . 10 2.2.1 Burundi (69) . 10 2.2.2 Comoros (153) . 10 2.2.3 Djibouti (113) . 10 2.2.4 Eritrea (115) . 10 2.2.5 Ethiopia (38) . 10 2.2.6 Kenya (40) . 11 2.2.7 Malawi (87) . 11 2.2.8 Mauritius (180) . 11 2.2.9 Rwanda (129) . 11 2.2.10 Seychelles (199) . 11 2.2.11 Somalia (130) . 11 2.2.12 Somaliland (139) . 11 2.2.13 South Sudan (32) . 11 2.2.14 Sudan (33) . -
IMPORTANT DATES of the YEAR Date-Time of The
IMPORTANT DATES OF THE YEAR Date-Time of the Spring Equinox of the current year Date-Time of the Summer Solstice of the current year Date-Time of the Fall Equinox of the current year Date-Time of the Winter Solstice of the current year Orthodox Easter Catholic Easter THE CURRENT DATE (TODAY) Julian Day Number (JDN): Number of days that have passed since the start of the current Julian period with day 0 the 1st of Jan. 4713 BC (in proletic Julian Calendar). This counting has been introduced by Scaliger in 1583. It gives only the ordinal number of any date independently of following Julian Calendar (before 5/10/1582) or Gregorian Calendar (introduced on 5/10/1582 transformed to 15/10/1582). Ancient Attic (Athenian Calendar): Year numbering from the start of Olympics (776 BC) Roman Calendar based on Nones, Ides, Kalends. Year numbering from the year of creation or Rome: Ab Urbe Condita (AUC) = 753 BC Byzantine Annus Mundi: Year numbering from the creation of the world (1st of Sept.5509 BC) according to Byzantines. Used by the Orthodox Church during the Byzantine Era. Byzantine years start on 1st of Sept. Indiction: The order of a year in a repeated 15-year cycle started in 297-298 AD in Roman Egypt and continues in Byzantines Hebrew Calendar (Anno Mundi): Year numbering from the date of the creation of the world for Jews: proleptic Julian 7th of Oct. 3761 BC. Hijri (Islamic) Calendar: Year numbering from 622 AD (1 AH – year of Hegira). Coptic Calendar (Anno Martyri/ Diocletiani). -
AP World History Summer Assignment 2021-2022
AP World History Summer Assignment 2021-2022 Welcome to AP World History! You have chosen to take a college-level course that provides a survey of global history to the present. This course will be rigorous, but highly rewarding if you put in the appropriate amount of work. Over the summer, you will be completing assignments that will make it possible for us to cover all of our material prior to the AP exam in May so it is very important that you complete these tasks. Summer assignments (Parts 1-3) will be due on the first day of class in August and be taken for a grade. If you have any questions over the summer, please email me at [email protected]. Note: You will be required to purchase a copy of AMSCO Advanced Placement World History: Modern prior to the start of school. We will be reading and completing work out of this book all year so it is very important that you have your own copy. The cost of this book is around $20 and can be purchased at the following link: https://www.perfectionlearning.com/social-studies/advanced-placement/world-history-ap-exam.html Part 1: Geography This course is a basic overview of the most significant regions/empires in the world. As such, we jump around from region to region quite often. It will be important that you are able to locate the major regions and empires on a world map throughout the course. Take a look at the map of the AP regions and familiarize yourself with it. -
Annales Islamologiques
MINISTÈRE DE L'ÉDUCATION NATIONALE, DE L'ENSEIGNEMENT SUPÉRIEUR ET DE LA RECHERCHE ANNALES ISLAMOLOGIQUES en ligne en ligne en ligne en ligne en ligne en ligne en ligne en ligne en ligne en ligne AnIsl 41 (2007), p. 97-118 Anne F. Broadbridge Diplomatic Conventions in the Mamluk Sultanate Conditions d’utilisation L’utilisation du contenu de ce site est limitée à un usage personnel et non commercial. Toute autre utilisation du site et de son contenu est soumise à une autorisation préalable de l’éditeur (contact AT ifao.egnet.net). Le copyright est conservé par l’éditeur (Ifao). Conditions of Use You may use content in this website only for your personal, noncommercial use. Any further use of this website and its content is forbidden, unless you have obtained prior permission from the publisher (contact AT ifao.egnet.net). The copyright is retained by the publisher (Ifao). Dernières publications 9782724708288 BIFAO 121 9782724708424 Bulletin archéologique des Écoles françaises à l'étranger (BAEFE) 9782724707878 Questionner le sphinx Philippe Collombert (éd.), Laurent Coulon (éd.), Ivan Guermeur (éd.), Christophe Thiers (éd.) 9782724708295 Bulletin de liaison de la céramique égyptienne 30 Sylvie Marchand (éd.) 9782724708356 Dendara. La Porte d'Horus Sylvie Cauville 9782724707953 Dendara. La Porte d’Horus Sylvie Cauville 9782724708394 Dendara. La Porte d'Hathor Sylvie Cauville 9782724708011 MIDEO 36 Emmanuel Pisani (éd.), Dennis Halft (éd.) © Institut français d’archéologie orientale - Le Caire Powered by TCPDF (www.tcpdf.org) 1 / 1 Anne F. BroAdBridge Diplomatic Conventions in the Mamluk Sultanate iplomatic conventions are generally understood to mean the protocol and etiquette that govern encounters between the representatives of different states, such as when Dambassadors go to a foreign court to meet with its ruler on behalf of their own. -
Weiblen, G.D. 2002 How to Be a Fig Wasp. Ann. Rev. Entomol. 47:299
25 Oct 2001 17:34 AR ar147-11.tex ar147-11.sgm ARv2(2001/05/10) P1: GJB Annu. Rev. Entomol. 2002. 47:299–330 Copyright c 2002 by Annual Reviews. All rights reserved ! HOW TO BE A FIG WASP George D. Weiblen University of Minnesota, Department of Plant Biology, St. Paul, Minnesota 55108; e-mail: [email protected] Key Words Agaonidae, coevolution, cospeciation, parasitism, pollination ■ Abstract In the two decades since Janzen described how to be a fig, more than 200 papers have appeared on fig wasps (Agaonidae) and their host plants (Ficus spp., Moraceae). Fig pollination is now widely regarded as a model system for the study of coevolved mutualism, and earlier reviews have focused on the evolution of resource conflicts between pollinating fig wasps, their hosts, and their parasites. Fig wasps have also been a focus of research on sex ratio evolution, the evolution of virulence, coevolu- tion, population genetics, host-parasitoid interactions, community ecology, historical biogeography, and conservation biology. This new synthesis of fig wasp research at- tempts to integrate recent contributions with the older literature and to promote research on diverse topics ranging from behavioral ecology to molecular evolution. CONTENTS INTRODUCING FIG WASPS ...........................................300 FIG WASP ECOLOGY .................................................302 Pollination Ecology ..................................................303 Host Specificity .....................................................304 Host Utilization .....................................................305