title: Ultra-low-cost logging anemometer for wind power generation feasibility surveys

authors: Cosgrove, Michael

abstract: We describe the design and implementation of a cup anemometer capable of logging average wind speed, maximum wind speed and seconds with wind above a criterion speed, on individual weeks. The instrument will operate for at least 54 weeks on two AA dry cells. The intention is that this instrument be deployed to ascertain whether it would be economical to install a wind generator, at a fraction of the cost of a multipurpose weather data logging station. It is designed around a $2 microcontroller that provides non-volatile memory. Provision has been made for using either a magnetic reed switch or the motor from a discarded hard disk drive to sense rotation. The latter enables the use of an otherwise worthless bearing and drive assembly to provide an especially frugal solution.

text: Ultra-low-cost logging anemometer for wind power generation feasibility surveys We describe the design and implementation of a cup anemometer capable of logging average wind speed, maximum wind speed and seconds with wind above a criterion speed, on individual weeks. The instrument will operate for at least 54 weeks on two AA dry cells. The intention is that this instrument be deployed to ascertain whether it would be economical to install a wind generator, at a fraction of the cost of a multipurpose weather data logging station. It is designed around a $2 microcontroller that provides non-volatile memory. Provision has been made for using either a magnetic reed switch or the motor from a discarded hard disk drive to sense rotation. The latter enables the use of an otherwise worthless bearing and drive assembly to provide an especially frugal solution.

year: 2007

title: Hantupeptin A, a cytotoxic cyclic depsipeptide from a Singapore collection of Lyngbya majuscula

authors: Tripathi, Ashootosh

subjects: chemistry

abstract: Chemical investigation of the marine cyanobacterium Lyngbya majuscula from Pulau Hantu Besar, Singapore, has led to the isolation of a cyclodepsipeptide, hantupeptin A (1). The planar structure of 1 was assigned on the basis of extensive 1D and 2D NMR spectroscopic experiments. The absolute configuration of the amino and hydroxyl acid residues in the molecule was determined by application of the advanced Marfey method, chiral HPLC analysis, and Mosher’s method. Hantupeptin A showed cytotoxicity to MOLT-4 leukemia cells and MCF-7 breast cancer cells with IC50 values of 32 and 4.0 µM, respectively.

text: Hantupeptin A, a cytotoxic cyclic depsipeptide from a Singapore collection of Lyngbya majuscula Chemical investigation of the marine cyanobacterium Lyngbya majuscula from Pulau Hantu Besar, Singapore, has led to the isolation of a cyclodepsipeptide, hantupeptin A (1). The planar structure of 1 was assigned on the basis of extensive 1D and 2D NMR spectroscopic experiments. The absolute configuration of the amino and hydroxyl acid residues in the molecule was determined by application of the advanced Marfey method, chiral HPLC analysis, and Mosher’s method. Hantupeptin A showed cytotoxicity to MOLT-4 leukemia cells and MCF-7 breast cancer cells with IC50 values of 32 and 4.0 µM, respectively.

year: 2009

title: Pupuritia ngā purapura i mahue mai rā: Te waiata-ā-ringa 1960 - 1990

authors: Papesch, Te Rita

subjects: Māori history

abstract: I tēnei tuhinga kei te āta titiro ahau ki te waiata-ā-ringa. Kei te hoki ahau ki te tīmatanga, ā, kei te whai ahau i te tipuranga me te oranga o tēnei mea, o te waiata-ā-ringa. Hei āwhina i ahau, kei te titiro ahau ki ētahi o ngā waiata-ā-ringa kua titoa e ngā kaitito mai i te tau 1960 tae noa ki te tau 1990. Kei te whakamārama hoki ahau i te whānui o ngā rerengakētanga o ēnei waiata-ā-ringa. Ka titiro hoki ahau ki te mahi ā ringa āhua reka hoki o ēnei waiata-ā-ringa, arā te mahi ngahau, te mahi whakataetae, te mahi i ēnei waiata-ā-ringa hei kīnaki i ngā whaikōrero, hei kīnaki i ngā kōrero kua kōrerohia i ngā hui, hei taonga pupuri i ngā kōrero o te iwi whānui, mō te iwi whānui me ngā mahi kua mahia i te ao i aua tuangahurutoru o ngā tau.
I tōku tau tuawhā i roto i te Tari Māori o Te Whare Wānanga o Waikato, i haere mātou ngā ākonga me tō mātou kaiwhakaako, me Hirini Melbourne, ki te kōrero ki ngā kaitito rongonui o te motu. I aua wā i hopukina ā rātou kōrero ki te mīhini. I roto i tēnei tuhinga kei te hoki ahau ki ā rātou kōrero i mau i a mātou. Ko ētahi o rātou kei te ora tonu, ko ētahi kua mate kē, kua haere ki tua o te ārai, ki te kāinga tūturu mō tātou katoa. Nō reira, e ngā whaea, nā koutou ahau i awhi, i mirimiri ki ō koutou ringa me ō koutou mōhiotanga ki tēnei taonga a tātou, ki te waiata-ā-ringa, moe mai rā i roto i ngā ringa o Hine-nui-te-pō.
Mai i aua wā i a au e ako ana i roto i te Tari Māori o Te Whare Wānanga o Waikato, i haere hoki ahau ki te pātai atu, ki te kōrero atu ki ētahi atu kaitito. Nā rātou ā rātou whakahoki ki aku pātai i tuhi ki runga i te pepa, ā, i mau hoki ki te rīpene. Nā, kua tae ki te wā me whakapuaki e ahau ōku māramatanga, mōhiotanga hoki ki ā rātou kōrero. Nō reira, e ngā mātua, he mihi kau anō tēnei ki a koutou i whai wā ki te whakahoki i ngā pātai, i ngā tono a tēnei tā koutou mōkai. Kua tukua e koutou tōku reo hei kawe i ō koutou whakaaro mō ā koutou mahi whakahirahira.
Kei te tuhi kōrero hoki ahau hei tautoko i tāku i whakapae, i whakahautia ēnei kaitito e ngā mahi waiata-ā-ringa i Te Tairāwhiti, e ngā tāngata o reira hoki, pērā i a Tā Apirana Ngata, i a Tuini Ngawai, i a wai, i a wai. Hei tautoko i tōku whakapae kua pātai atu ahau ki ēnei kaitito mō ō rātou whakaaro mō tōku whakapae, ā, kua tuhia ō rātou whakaaro.
Kei te whai hoki ahau i ōku whakaaro, mā tēnei taonga, mā te waiata-ā-ringa ka ako ai te tangata i tō tātou reo rangatira me ōna āhuatanga katoa.
Ki ahau nei kei reira, kei ngā waiata-ā-ringa e takoto ana ngā kōrero ātaahua o mua rā, arā, ngā whakataukī, ngā pepeha. Kei reira hoki e mahia ana te reo tūturu, te reo tawhito, tae noa ki te reo o nāianei. He ātaahua katoa ēnei reo, he akoranga hoki mā te tangata.
Ki te pātai mai te tangata, e hia te roa atu o tāku mahi rangahau i tēnei kaupapa, ka whakahoki au ki a ia, mai i te wā tuatahi ka mahi au i te waiata-ā-ringa, tae noa ki tēnei tau tonu, ā, e toru tekau ngā tau au e whakaaro ana, e mahi ana i te waiata-ā-ringa. Kātahi anō au ka whai wā ki te tuhi mō te waiata-ā-ringa.
Nā, hei kōrero whakamutunga, kei te titiro ahau kei whea e tū ana te waiata-ā-ringa i ēnei rā, ā, kei whea hoki e haere ana, ka whai hua anō, ā, ki whea?
Kia ora tātou mō tēnei wā.

text: Pupuritia ngā purapura i mahue mai rā: Te waiata-ā-ringa 1960 - 1990 I tēnei tuhinga kei te āta titiro ahau ki te waiata-ā-ringa. Kei te hoki ahau ki te tīmatanga, ā, kei te whai ahau i te tipuranga me te oranga o tēnei mea, o te waiata-ā-ringa. Hei āwhina i ahau, kei te titiro ahau ki ētahi o ngā waiata-ā-ringa kua titoa e ngā kaitito mai i te tau 1960 tae noa ki te tau 1990. Kei te whakamārama hoki ahau i te whānui o ngā rerengakētanga o ēnei waiata-ā-ringa. Ka titiro hoki ahau ki te mahi ā ringa āhua reka hoki o ēnei waiata-ā-ringa, arā te mahi ngahau, te mahi whakataetae, te mahi i ēnei waiata-ā-ringa hei kīnaki i ngā whaikōrero, hei kīnaki i ngā kōrero kua kōrerohia i ngā hui, hei taonga pupuri i ngā kōrero o te iwi whānui, mō te iwi whānui me ngā mahi kua mahia i te ao i aua tuangahurutoru o ngā tau.
I tōku tau tuawhā i roto i te Tari Māori o Te Whare Wānanga o Waikato, i haere mātou ngā ākonga me tō mātou kaiwhakaako, me Hirini Melbourne, ki te kōrero ki ngā kaitito rongonui o te motu. I aua wā i hopukina ā rātou kōrero ki te mīhini. I roto i tēnei tuhinga kei te hoki ahau ki ā rātou kōrero i mau i a mātou. Ko ētahi o rātou kei te ora tonu, ko ētahi kua mate kē, kua haere ki tua o te ārai, ki te kāinga tūturu mō tātou katoa. Nō reira, e ngā whaea, nā koutou ahau i awhi, i mirimiri ki ō koutou ringa me ō koutou mōhiotanga ki tēnei taonga a tātou, ki te waiata-ā-ringa, moe mai rā i roto i ngā ringa o Hine-nui-te-pō.
Mai i aua wā i a au e ako ana i roto i te Tari Māori o Te Whare Wānanga o Waikato, i haere hoki ahau ki te pātai atu, ki te kōrero atu ki ētahi atu kaitito. Nā rātou ā rātou whakahoki ki aku pātai i tuhi ki runga i te pepa, ā, i mau hoki ki te rīpene. Nā, kua tae ki te wā me whakapuaki e ahau ōku māramatanga, mōhiotanga hoki ki ā rātou kōrero. Nō reira, e ngā mātua, he mihi kau anō tēnei ki a koutou i whai wā ki te whakahoki i ngā pātai, i ngā tono a tēnei tā koutou mōkai. Kua tukua e koutou tōku reo hei kawe i ō koutou whakaaro mō ā koutou mahi whakahirahira.
Kei te tuhi kōrero hoki ahau hei tautoko i tāku i whakapae, i whakahautia ēnei kaitito e ngā mahi waiata-ā-ringa i Te Tairāwhiti, e ngā tāngata o reira hoki, pērā i a Tā Apirana Ngata, i a Tuini Ngawai, i a wai, i a wai. Hei tautoko i tōku whakapae kua pātai atu ahau ki ēnei kaitito mō ō rātou whakaaro mō tōku whakapae, ā, kua tuhia ō rātou whakaaro.
Kei te whai hoki ahau i ōku whakaaro, mā tēnei taonga, mā te waiata-ā-ringa ka ako ai te tangata i tō tātou reo rangatira me ōna āhuatanga katoa.
Ki ahau nei kei reira, kei ngā waiata-ā-ringa e takoto ana ngā kōrero ātaahua o mua rā, arā, ngā whakataukī, ngā pepeha. Kei reira hoki e mahia ana te reo tūturu, te reo tawhito, tae noa ki te reo o nāianei. He ātaahua katoa ēnei reo, he akoranga hoki mā te tangata.
Ki te pātai mai te tangata, e hia te roa atu o tāku mahi rangahau i tēnei kaupapa, ka whakahoki au ki a ia, mai i te wā tuatahi ka mahi au i te waiata-ā-ringa, tae noa ki tēnei tau tonu, ā, e toru tekau ngā tau au e whakaaro ana, e mahi ana i te waiata-ā-ringa. Kātahi anō au ka whai wā ki te tuhi mō te waiata-ā-ringa.
Nā, hei kōrero whakamutunga, kei te titiro ahau kei whea e tū ana te waiata-ā-ringa i ēnei rā, ā, kei whea hoki e haere ana, ka whai hua anō, ā, ki whea?
Kia ora tātou mō tēnei wā.

year: 1990