baber/WOPTO huggingface dataset:
Patent TW-I792523-B (TW)
Title: 可提高沉積均勻度的薄膜沉積設備及其遮擋構件
Inventor: LIN JING-CHENG
IPC: C23C14/56
Filed: 2021-08-24
Granted: 2023-02-11
Abstract: 本發明提供一種可提高沉積均勻度的薄膜沉積設備，主要包括一腔體、一載台、一環形構件、一擋件及一蓋環。載台及擋件位於腔體的容置空間內，其中環形構件連接載台。蓋環設置在擋件的一環形凸緣，並包括至少一凸起部，其中凸起部位於蓋環的內側，並朝腔體的頂部凸起。蓋環的凸起部用以遮擋載台的側面，以減少沉積在載台側面上的薄膜。蓋環的凸起部亦有利於引導載台上方的氣體，使得氣體由載台的上方流向蓋環的徑向外側，以提高載台及基板的邊緣區域的氣體流動的穩定性，並提高沉積在基板的邊緣區域的薄膜均勻度。
Patent TW-I802050-B (TW)
Title: 光電能量轉換件
Inventor: CHANG HSIU-CHENG
IPC: H02S10/00
Filed: 2021-10-20
Granted: 2023-05-11
Abstract: 一種光電能量轉換件，應用於一電源轉換電路中，該光電能量轉換件用以取代該電源轉換電路中普遍使用的一磁性元件。該光電能量轉換件包含一殼體，至少一光線產生單元，以及至少一光伏產生單元，該光線產生單元與該光伏產生單元封裝於該殼體內，該光伏產生單元接受該光線產生單元於該殼體內產生的一光線並基於該光線產生電能，該光伏產生單元作為該光電能量轉換件的一後級電路的供電來源。
Patent TW-I803073-B (TW)
Title: 麻將機基座模塊及其組成的麻將機基座
Inventor: CAI HANG-TING
IPC: A63F9/20
Filed: 2021-11-29
Granted: 2023-05-21
Abstract: 本發明屬於麻將機生產製造技術領域，提供了一種麻將機基座模塊，包括基板，基板上設置有裝配連接孔，在基板頂面的左側設置有第一凸起部、在其右側設置有第二凸起部，推升軸座，網板總成安裝部，輸送總成安裝部；在基板左側位於第一凸起部的後端設置有擋牌座安裝部，在基板右側、位於第二凸起部右端設置有機頭總成安裝部。本發明還提供了由四個麻將機基座模塊組成的麻將機基座。相較於現有技術而言，本發明將麻將機基座的結構模組化設計為麻將機基座模塊，結構較為簡明、裝配作業較為方便。
Patent TW-I791343-B (TW)
Inventor: HSIEH TSUNG-HAN
IPC: B23Q17/00
Filed: 2021-12-01
Granted: 2023-02-01
Abstract: An obtaining method and an obtaining apparatus for geometric error of rotation axis are provided. The obtaining method for geometric error includes the following steps. An encoding ring is installed on a rotating shaft, and a first optical pickup head and a second optical pickup head are installed around the encoding ring. The encoding ring is rotated by the rotating shaft, and a deviation distance and an azimuth angle of the center point of the encoding ring relative to the center axis of the rotating shaft when the rotating shaft rotates 0 degrees is obtained according to the angle value read by the first optical pickup head. Obtain a first assembly angle deviation of the first optical pickup head and a second assembly angle deviation of the second optical pickup head. Obtain the rotation angle error of the rotation axis when it rotates to various angles. Obtain the rotational yaw error of the rotating shaft when it rotates to various angles.
Patent TW-I783816-B (TW)
Title: 組裝模組與組裝設備及組裝模組之應用方法
Inventor: WANG TING-JUI
IPC: B29C45/26
Filed: 2019-12-18
Granted: 2022-11-11
Abstract: 一種組裝模組與組裝設備及組裝模組之應用方法，其包含一第一組裝模具、一第二組裝模具以及至少一組合模具。該第一組裝模具具有多數第一組立部；該第二組裝模具具有多數第二組立部，該第二組裝模具與該第一組裝模具相對應；該組合模具可移除地設於至少一第一組立部、至少一第二組立部或至少一第一組立部及至少一第二組立部之相對應位置。藉此，可作為組合所需之元件與被組裝體，而達到易於操作以及快速組裝之功效。
Patent TW-I814170-B (TW)
Title: 資訊處理裝置以及資訊處理方法
Inventor: TAKANO NAOTO
IPC: G05B23/02
Filed: 2021-12-10
Granted: 2023-09-01
Abstract: 內部變數保持部(1002)保持基於感測資料按照時序依次計算的內部變數。內部變數計算部(1003)基於第j+1時點的感測資料以及第j時點對應的內部變數，計算第j+1時點(j為1至N-1的整數)對應的內部變數。特徵量計算部(1004)基於第N時點的內部變數來計算特徵量，特徵量取出從第1時點至第N時點的感測資料當中包含的統計特徵。狀態診斷部(1006)基於特徵量診斷機械裝置(1008)的狀態。
Patent TW-I797893-B (TW)
Title: Optical film having low concentration of chlorine, method for manufacturing the smae and display apparatus comprising the same
Inventor: CHOI MIN-HEE
IPC: C08G73/14
Filed: 2021-12-16
Granted: 2023-04-01
Abstract: Disclosed are an optical film having a chlorine (Cl) 
concentration of 120 ppm by weight (0.012 wt%) or less, a method of manufacturing the same, and a display device including the same. The optical film has a low chlorine concentration and thus exhibits excellent optical properties, thus being capable of maintaining the excellent optical properties without being deteriorated, even after use for a long time.
Patent TW-I795137-B (TW)
Title: Vehicle window lifting mechanism
Inventor: CHIANG KUANG YU
IPC: E05F11/48
Filed: 2021-12-22
Granted: 2023-03-01
Abstract: A vehicle window lifting mechanism having a guide rail, a shaft seat, a pulley, a drive module and a sliding block is provided. The shaft seat has an embedded section and a shaft for the pulley to be sleeved. The embedded section is embedded at one end of the guide rail. The shaft is exposed on the guide rail and horizontally extended with a flange blocking between the pulley and the guide rail. The drive module includes a driver and a wire rope around the pulley and connected to the driver. The driver is arranged on the guide rail and linked to the wire rope to roll. The sliding block is arranged on the guide rail and connected to the wire rope to slide along the guide rail. The shaft seat therefore 
avoiding the pulley to wear with the guide rail and greatly reducing a weight and cost of the guide rail.
Patent TW-I792839-B (TW)
Title: 奈米防蝕耐候樹脂塗料
Inventor: CHOU YI LING
IPC: C09D163/00
Filed: 2022-01-07
Granted: 2023-02-11
Abstract: 一種樹脂塗料，包括經層間剝離之碳的同素異形體及樹脂。經層間剝離之碳的同素異形體的橫向尺寸小於10 μm，厚度小於5 nm，表觀密度小於0.15 g/cm
         3 ，碳含量大於98.5%，氧含量小於0.1%，水分含量小於5%。
Patent TW-I808608-B (TW)
Inventor: WU XIAOWEI
IPC: C23C16/00
Filed: 2018-01-17
Granted: 2023-07-11
Abstract: Described herein are articles, systems and methods where a plasma resistant coating is deposited onto a surface of a chamber component using an atomic layer deposition (ALD) process. The plasma resistant coating has a stress relief layer and a layer comprising a solid solution of Y 2 O 3 -ZrO 2  and uniformly covers features, such as those having an aspect ratio of about 3:1 to about 300:1.
Patent TW-I804206-B (TW)
Title: Metal frame antenna applied to a light and thin notebook with a high screen ratio
Inventor: Chen hua ming
IPC: H01Q5/30
Filed: 2022-02-22
Granted: 2023-06-01
Abstract: The present invention relates to a metal frame antenna applied to a light and thin notebook with a high screen ratio. It is mainly used in a notebook having a thin thickness, a lightweight and a high screen ratio. By utilizing a first-band antenna set covering 5G NR n77/n78/n79 operating bands and a second-band antenna set covering Wi-Fi 6E & 5G NR n77/n78/n79 operating bands respectively, both are placed on a metal frame of a notebook screen, not only can the best space utilization be achieved, but also the matching degree can reach VSWR 5.8:1 [reflection loss is 3dB], the average measured efficiency reaches more than 40%, and the average gain reaches 5dBi. It achieves the characteristics that a single antenna has multiple modes of equal antenna structure by the design of common ground point and split-slot holes for coupling lines, so as to increase the practicality and efficiency for the whole implementation.
Patent TW-I806763-B (TW)
Title: 組合式刀具
Inventor: HUANG YING-CHIA
IPC: B23Q3/02
Filed: 2022-09-08
Granted: 2023-06-21
Abstract: 一種組合式刀具，包含一刀桿、一組接塊、一第一鎖固件，及一刀刃。該刀桿包括一桿體部，及一連接於該桿體部之一端的桿頭部。該桿頭部具有一組接容槽。該組接塊包括一可拆卸地嵌置定位於該組接容槽的本體，及一形成於該本體遠離該桿頭部之一端的置刀容槽。該第一鎖固件用於將該組接塊固定於該桿頭部。該刀刃可拆卸地設置於該置刀容槽。藉由該本體可拆卸地嵌置定位於該組接容槽、該刀刃可拆卸地設置於該置刀容槽，當有撞刀的情況發生而導致該組接塊與該刀刃受損時，僅需更換新的組接塊與刀刃即可繼續使用，無須更換該刀桿。
Patent TW-I812526-B (TW)
Title: Heterocyclic compound and organic light emitting device comprising the same
Inventor: NO YOUNG SEOK
IPC: C09K11/06
Filed: 2018-03-26
Granted: 2023-08-11
Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
Patent ZA-200106005-B (ZA)
Title: A game-type flavouring agent.
Inventor: BLANK IMRE
IPC: A23L27/00
Filed: 2001-07-19
Abstract: A flavouring agent intended for enhancing or imparting game-type flavour in food products, said composition comprising a combination of an alkylphenol and cyclohexanecarboxylic acid or an alkyl-substituted derivative thereof and its use for the preparation of flavouring compositions.
Patent ZA-200106874-B (ZA)
Title: Device for treating composite elements.
Inventor: WEBER ROBERT
IPC: B02C23/16
Filed: 2001-08-20
Abstract: The invention relates to a device (10) for treating composite elements made of solid organic and/or inorganic composite materials. Said device (10) contains a flow path situated between a feed channel (34) and a tube-like outlet (38, 38a) in a housing. Said flow path is used for a transport fluid which is produced by disintegrating the  composite materials and which carries particles made of solid matter. A conveyor element (78) is allocated to the cross section of the tube-like outlet. Said conveyor element (78) contains plate-like surface agents (76) which extend in the direction of the flow. A grid element or sieve element (86) which extends at least partially through said cross section is also allocated to said cross section. Plates (76) which are configured as surface agents protrude radially and parallel in relation to the longitudinal axis of a shaft from the shaft (74) that extends in the direction of flow and is pivotably mounted. Said plates are adjusted to the longitudinal section of the interior (84) of a tube-like housing (72) and can be pivoted like paddles in said interior.
Patent ZA-200109309-B (ZA)
Title: Coupling.
Inventor: BUNSCHOTEN GERRIT KLAAS
IPC: F16L37/35
Filed: 2001-11-12
Abstract: The invention pertains to a coupling for a liquid product packaging and dispensing assembly in which liquid is pumped from a container via the coupling through a tube to the point of use. The coupling comprises a first interconnectable member with a hollow post and a biased sleeve closing openings in the hollow post and a second interconnectable member with a holl ow sheath and a biased piston closing an opening at the end of the sheath. The parts are configured so that, upon connection, the post unseats the piston while the sheath displaces the sleeve, thereby allowing liquid flow. An elastic ring is present between the sheath and the sleeve which ring is compressed in the axial direction and expanded in the radial direction towar ds the post so as to establish a close fit around the post.
Patent ZA-200306284-B (ZA)
Title: Catheter injectable depot compositions and uses thereof.
Inventor: CHEN GUOHUA
IPC: A61K38/43
Filed: 2003-08-13
Abstract: Injectable depot compositions are provided that include a bioerodible, biocompatible polymer, an aromatic alcohol having miscibility in water of less than or equal to 7 wt. % at 25° C., in an amount effective to plasticize the polymer and form a gel therewith, and a beneficial agent. The composition may additionally contain an ester of an aromatic acid, or an aromatic ketone. The compositions are readily implanted beneath a patient's body surface by injection, as the aromatic alcohol not only facilitates solubilization of the polymer, but also acts as a thixotropic agent, substantially increasing the shear thinning behavior of the composition.
Patent ZA-200405695-B (ZA)
Title: Novel cytokine zcytor17 ligand
Inventor: FRANCIS J GRANT
IPC: G01N/
Filed: 2004-07-16
Abstract: There is provided an antibody or antibody fragment which specifically binds to a portion of SEQ ID NO:2, wherein said portion consists of between 30 and 100 contiguous amino acids of SEQ ID NO:2, and wherein said portion contains amino acids selected from the group consisting of: (a) amino acid residues 54 to 59 of SEQ ID NO: 2; (b) amino acid residues 129 to 134 of SEQ ID NO: 2; (c) amino acid residues 53 to 58 of SEQ ID NO: 2; (d) amino acid residues 35 to 40 of SEQ ID NO: 2; (e) amino acid residues 33 to 38 of SEQ ID NO: 2; (f) amino acid residues 114 to 119 of SEQ ID NO: 2; (g) amino acid residues 101 to 105 of SEQ ID NO: 2; (h) amino acid residues 126 to 131 of SEQ ID NO: 2; (i) amino acid residues 113 to 118 of SEQ ID NO: 2; and (j) amino acid residues 158 to 162 of SEQ ID NO:2.
Patent ZA-200408684-B (ZA)
Title: Ink channel extrusion for a printer assembly.
Inventor: SILVERBROOK KIA
IPC: B41J2/175
Filed: 2003-09-30
Abstract: A method for assembling a modular printhead assembly having an ink delivery member and a plurality of printhead modules received in a channel at a predetermined pitch is disclosed. The method includes the steps of flexing the channel apart at a first location to enable receipt of a first printhead module into the channel at the first location, the step of flexing being performed against a pivot point located along a centerline of an underside of the channel; and flexing apart a first capping device to enable pushing of the first capping device over the first printhead module.
Patent ZA-201001946-B (ZA)
Title: Substituted N-phenyl-bipyrrolidine carboxamides and therapeutic use thereof
Inventor: CZECHTIZKY WERNGARD
IPC: C07D/
Filed: 2010-03-18
Abstract: The present invention discloses and claims a series of substituted N-phenyl-bipyrrolidine carboxamides of formula (I). Wherein R, R1, R2, R3 and R4 are as described herein. More specifically, the compounds of this invention are modulators of H3 receptors and are, therefore, useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of diseases modulated by H3 receptors including diseases associated with the central nervous system. Additionally, this invention also discloses methods of preparation of substituted N-phenyl-bipyrrolidine carboxamides and intermediates therefor.
Patent ZA-202208927-B (ZA)
Title: An instrument panel for a vehicle
Inventor: SHARMA; Anil Kumar
Filed: 2022-08-10
Abstract: The present disclosure relates to instrument panels of vehicles. The present disclosure envisages an instrument panel (10) of a vehicle. The panel (10) comprises a reconfigurable topper pad module (11) 5 configured to be mounted on a panel (10) carrier provided on the vehicle body, and a mid-roll (12) module configured to be arranged below the topper pad. The panel (10) further comprises a console module configured to be attached to the vehicle body. The console module has at least three variants, wherein each variant corresponds to a variant of the vehicle. The topper pad 10 module (11) and the mid-roll (12) module are configured to be reconfigured to accommodate the console module, of the desired vehicle variant, thereon to define the instrument panel (10).
Patent GR-1004140-B (GR)
Title: Finishing tool
Inventor: ELEFTHERIADIS STELIOS EVANGELO
IPC: E04F21/06
Filed: 2002-01-25
Abstract: inishing tool for smoothing and finishing outside corners. It has the base 1 with the right-angled finishing surface 2 whereon is attached the foamy material 3, and the handle 4.
Patent GR-1004391-B (GR)
Title: Shipbuilding bottom lines for three outboard motor crafts
Inventor: OTIMOS ANDREAS CHARILAOU
IPC: B63B1/04
Filed: 2002-06-20
Abstract: The invention relates to the marine lines of three recreational or fishing watercrafts, which are powered by outboard motors, achieve the maximum possible performance of the motors by reducing to a minimum the friction with the sea on the hull of each watercraft, and designate the whole external shape of the three boats.<IMAGE>
Patent IN-192274-B (IN)
Inventor: SEDLAK HOLGER
IPC: G11C16/30
Filed: 1996-11-11
Abstract: The invention relates to a method and device for automatic determination of the required high voltage for programming/erasing an EEPROM. The present method renders it possible to determine individually the high voltage (Vpp) required to erase or program for each electrically erasable and programmable fixed-value semi-conductor memory (SP), and to store it in the memory (SP) itself in a region A provided therein. This determined high voltage can be retrieved from said region for any further erasing or programming. From a first value of the high voltage for programming or erasing the memory and a first value of a reading voltage for checking of programming or erasing, the most advantageous high voltage is determined by successively modifying either the high voltage or the reading voltage.
Patent MX-353765-B (MX)
Title: Decoupling of measuring the response time of a transponder and its authentication.
Inventor: HANS DE JONG
IPC: H04L9/32
Filed: 2008-11-03
Abstract: Reader (420) for determining the validity of a connection to a transponder (440), designed to measure a response time of a transponder (440) and to authenticate the transponder (440) in two separate steps. Transponder (440) for determining the validity of a connection to a reader (420), wherein the transponder (440) is designed to provide information for response time measurement to said reader (420) and to provide information for authentication to said reader (420) in two separate steps, wherein at least a part of data used for the authentication is included in a communication message transmitted between the reader (420) and the transponder (440) during the measuring of the response time.
Patent MX-338494-B (MX)
Title: Process and equipment for obtaining biogas from cactus by means of anaerobic digestion.
Inventor: LÓPEZ ROGELIO SOSA
IPC: C05F9/02
Filed: 2012-01-09
Abstract: Process for obtaining biogas from cactus, particularly opuntia (nopales), said process transforming biomass (cactus) into biofuel, the product introduced into the biodigestor being an organic fraction mixture of opuntia filtrated with water in ratios of from about 3% to about 5% water-opuntia, the use of water may transmit heat to the inner portion of the biodigestor, this being a form to control the biomass fermentation, the water temperature ranging from about 35°C to about 40°C. The pH of the mixture in the reactor is controlled in a range of from about 6.9 to about 7.1. The transformation of the biomass by the action of the bacterial microorganism in anaerobic conditions requires a period of time of from about 12 days to about 50 days. The obtained biogas is reduced into hydrogen sulphide acid and carbon dioxide. The equipment for performing the aforesaid process comprises a hopper for supplying raw material, which is coupled to a mill that includes a sump for leading a feed pump to thick filters, which are led to a water supply valve in a piping that is led to a biodigestor or anaerobic reactor, this latter element comprising a suitable heat exchanger that includes two coupled and diametrically opposite pumps; the outlet piping of the biodigestor is led to filters of hydrogen sulphide acid that are communicated to a compressor that is led to biogas washers, these washers being communicated to water heaters for the biodigestor circulation, storing deposits, industrial burners, or electric power generators; the biodigestor is communicated, by means of a piping, to degasification towers coupled to an air compressor.
Patent MX-342681-B (MX)
Title: Maleate salts of (e)-n-{4-[3-chloro-4-(2-pyridinylmethoxy)anilino ]-3-cyano-7-ethoxy-6-quinolinyl}-4-(dimethylamino)-2-butenamide and crystalline forms thereof.
Inventor: CHEW WARREN
IPC: A61P35/00
Filed: 2008-10-16
Abstract: The present invention relates to maleate salt forms of (E)-N-{4-[3-chloro-4-(2-pyridinylmethoxy)anilino]-3-cyano-7-eth oxy-6-quinolinyl}-4-(dimethylamino)-2-butenamide, (NERATINIB) methods of preparing crystalline maleate salt forms, the associated compounds, such as its degradation and impurities and pharmaceutical compositions containing the same. The maleate salts are useful in treating cancers, particularly those affected by kinases of the epidermal growth factor receptor family.
Patent MX-345342-B (MX)
Title: Process for improving heavy and extra heavy crude oil.
Inventor: PERSI SCHACHT HERNÁNDEZ
IPC: C10G35/04
Filed: 2012-08-20
Abstract: The present invention is related to a process, by means of the application of a homogeneous phase catalyst, for improving heavy and extra heavy crude oil, which consists in the following steps: 1. separation and elimination of water contained in the hydrocarbon. 2. Catalyst injection and activation of the reaction system. 3. Elimination of gas hydrocarbons and recovery of the partial pressure of hydrogen at different times. 4. Reaction and 5. recovery of distilled products. This process allows the physical and chemical properties of the crude oil to be improved, increasing the API gravity, reducing the kinematic viscosity thereof, changing the composition per hydrocarbon families (SARA), increasing the ratio of saturated and aromatic hydrocarbons and reducing that corresponding to resins and asphaltenes, so that the treated crude oil is turned into a lighter crude oil. In addition, the content of sulphur and nitrogen is reduced, thus obtaining a higher performance in distillates of hi gh commercial value upon generating a carbon production during the lower reaction of 1% by weight.
Patent MX-336611-B (MX)
Title: Selective glycosidase inhibitors and uses thereof.
Inventor: ZHOU YUANXI
IPC: C07D513/04
Filed: 2011-11-08
Abstract: The invention is directed to compounds for selectively inhibiting glycosidases, uses of the compounds and pharmaceutical compositions including the compounds, and methods of treating diseases and disorders related to deficiency or overexpression of O-GlcNAcase, and/or accumulation or deficiency of O-GlcNAc.
Patent MX-337627-B (MX)
Title: Composition i-ii and products and uses thereof.
Inventor: PHILLIPS MARCUS DAMIAN
IPC: A61L26/00
Filed: 2011-11-25
Abstract: A curable composition apportioned between at least one Part A and at least one Part B, the Parts sealed within barrier means preventing contamination, the at least one Part A comprising: (i) one or more alkenyl-group containing prepolymers having at least one alkenyl group or moiety per molecule, and the at least one Part B comprising: (ii) one or more SiH-containing prepolymers having at least one Si-H unit per molecule; the composition additionally comprising: (iii) a catalyst for curing by addition of alkenyi-containing prepolymer (i) to SiH-containing prepolymer (ii), wherein prepolymer (ii) is substantially absent from Part A and prepolymer (i) is substantially absent from Part B, methods for preparing the composition, methods for sterilisation thereof, medical and non-medical use thereof, a device incorporating the composition, and a precursor therefor including its sterilisable precursor composition, in particular a terminally sterilisable or terminally sterile composition for medical use, particularly in wound therapy, more particularly as a wound packing material which can be shaped and configured to the shape of a wound, most particularly for application in negative pressure wound therapy (NPWT).
Patent MX-342562-B (MX)
Title: Retractable roof.
Inventor: RICHARD VOLLEBREGT
IPC: A01G13/02
Filed: 2012-08-03
Abstract: A roof structure to protect a crop growing area includes a retractable roof membrane or curtain that defines pitched sections of roof. The membrane is supported on wires and extends across the valley between pitched sections. Apertures are provided in the membrane to allow water to pass through the membrane. A gutter may be disposed in the valley beneath the apertures to collect the water and discharge it away from the crop growing area. A rotating drive tube mounted on an interior rafter has cables connected to the drive tube with a spring connected to each cable to regulate minimum tension of the cable. The drive system is positioned so that the membrane adjacent to the drive tube on the interior inclined rafter is able to travel the same distance as the second membrane from the drive system. The rafter contains profiles to allow the stationary end of said membrane to be attached to said rafters using both a round tube and a "C shaped profile to be installed continuously along said rafter to provide a water tight connection between said rafter and said membrane. The rafter also contains clips which provide the ability to restrict the guide wires which suspend said membrane in such a way that wires are clamped to inhibit vertical, lateral and horizontal movement at interior rafter locations with a different clamp at a rafter adjacent to a perimeter wall of the structure such that the guidewire can move only perpendicular to the rafter. Guidewires are typically supported by trusses but now can be alternatively supported by a network of flexible cable or rods at a lower cost. To allow for ventilation and rain protect simultaneously, a secondary membrane is installed below a opening in the roof, with the secondary membrane transporting rainwater which entered through the roof opening down into a gutter. To maximize the reduction in temperatures at the crop level during the summer, and to hold the heat closer to the plants during the cold winter conditions winter daytime temperatures, the upper retractable membrane is white and a secondary retractable membrane located closer to the plants is clear.